DEVELOPMENTAL MILESTONE CHART FOR CHILDREN

- By Jennifer

From Birth to Age One

• Physical Milestones
  • 0-4 months 50-300 ml/day urine production
  • 0-7 years PMI (point of maximum impulse of heart) located at 3rd or 4th intercostal space, just left of midclavicular line
  • 0-2 years respiration rate 24 to 34 respirations per minute
  • 0-1 years pulse rate 135 ± 3.1
  • 0-1 year blood pressure 90 ± 25 systolic, 61 ± 19 diastolic
  • 0-1 year pulse 70-180, respiration 30-40
  • 0-1 year temperature : 99.6F rectal, 98.6F oral, 97.4F axillary
  • 0-1 year PaO2 85-100, PaCO2 35-45
  • 0-15 months eliminates urine & feces automatically; may need up to 30 diapers a day as newborn
  • 0-2 1/2 years naps easily
  • 2 months weight gain between 1 lb. 4 oz. and 1 lb. 12 oz.
  • 2 months height gain of 2 inches
  • 2 months a 1-inch increase of head circumference
  • 2 months closure of posterior fontanel
  • 2 months doll's eye reflex, dance reflex, grasp reflex, and crawling reflex disappearing

• 2 months hands are frequently open
• 2 months less head lag
• 2 months when on stomach, able to lift head almost 45 degrees
• 2 months decreased flexion of extremities while on stomach
• 4 months the average child should weigh 14 lb. height 25 in. (weight gain between 2 lb. 8 oz. and 3 lb. 8 oz. and a height gain of 4 inches from 2 months)
• 4 months - 2 years 350-550 ml/day urine production
• 4 months a 2 inch increase of head circumference from 2 month old size
• 4 months Moro reflex, tonic reflex, rooting reflex, and Perez reflex disappearing

• 4 months almost no head lag while in a sitting position
• 4 months able to sit straight up if propped
• 4 months able to raise head 90 degrees when placed on stomach
• 4 months able to roll from back to one side
• 4 months tries to reach objects with hands, but commonly overshoots
• 4 months plays with rattle when placed in hands, but unable to pick it up if dropped
• 4 months grasps rattle with both hands
• 4 months able to place objects in mouth
• 5-9 months lower central incisors (2) [deciduous]
• 6 months accommodation (pupil dilation for distant objects) present
• 6 months the average child should weigh 18 lb. height 26 1/2 in.
• 6 months should have doubled birth weight
• 6 months height gain of 6 inches
• 6 months a 3-inch increase of head circumference
• 6 months able to lift chest and head while on stomach bearing the weight on hand
• 6 months able to sit in a high chair with a straight back
• 6 months beginning of teething
• 6 months increased drooling
• 6 months beginning of Landau reflex

• 6 months able to bear almost all weight when supported in a standing position
• 6 months able to roll from back onto abdomen
• 6 months able to hold own bottle
• 6 months able to pick up a dropped object
• 6-7 months palmar grasp reflex disappears
• 6 -12 months sleeps 10-12 hours per night & 20min. to 3 hours daytime naps
• 8 months the average child should weigh 20 lb. height 27 in.
• 8-12 months upper central incisors (2) [deciduous]
• 8-12 months sit up strongly without support
• 8-12 months creep and pull himself up
• 8-12 months begin to use one hand more than the other
• 8-12 months begin chopped foods
• 8-12 months make sounds like da-da and ma-ma
• 9 months weight should increase by 2 lb. 4 oz. to 3 lb. 12 oz.
• 9 months height gain of 1 ½ inches since 6 months old
• 9 months bowel and bladder systems become more regulated
• 9 months parachute reflex appears

• 9 months crawls
• 9 months can remain sitting for prolonged periods
• 9 months may pull self to standing position
• 9 months begins preference for dominant hand
• 9 months has a pincer grasp between thumb and index finger
• 9-12 months plantar reflex disappears

• 9-12 months neck righting reflex disappears

• 10 months the average child should weigh 22 lb. height 29 in.
• 10-12 months upper lateral incisors (2) [deciduous]
  

• Sensory and Cognitive Milestones
  • 2 months searches to locate sounds
  • 2 months head turns from side to side with auditory stimulation at the level of the ear
  • 2 months beginning to visually fix on close objects
  • 2 months crying becomes differentiated
  • 2 months coos
  • 2 months vocal response to familiar voices
  • 2 months smiles in response to stimuli
  • 4 months close vision well established
  • 4 months eye-hand coordination beginning
  • 4 months can make the consonant sounds: n, k, p, g, b
  • 4 months laughs out loud
  • 4 months anticipates feeding when able to see a bottle (if bottle-fed)
  • 4 months begins to show memory
  • 4 months demands attention by fussing
  • 6 months vision has improved to between 20/60 and 20/40
  • 6 months can localize sounds not made in a direct plane with the ear
  • 6 months prefers more complex auditory stimulation
  • 6 months starts to imitate sounds
  • 6 months sounds resemble one-syllable words
  • 6 months enjoys hearing own voice
  • 6 months makes sounds to mirror and toys
  • 6 months begins to fear strangers
  • 6 months recognizes parents
  • 6 months begins to imitate actions
  • 6 months begins to realize that if an object is dropped it is still there and just needs to be picked up
  • 9 months development of depth perception
  • 9 months can respond to simple commands
  • 9 months understands the meaning of no
  • 9 months may be afraid of being left alone
• Language Milestones
  • Recognizes name
  • Says 2-3 words besides "mama" and "dada"
  • Imitates familiar words
  • Understands simple instructions
  • Recognizes words as symbols for objects: Car - points to garage, cat - meows
• Social/Behavioral Milestones
  • 0-1 month Indefinite gaze at surroundings. Listens to sounds. Watches Mother's face when she feeds or talks to him.
  • 3-4 months Spontaneous smile. Brings hands together and watches them. Pulls clothes over face when he plays. Recognizes feeding bottle.
  • 5-6 months Puts everything in mouth. Plays with toes and grasps feet. Pats bottle with both hands when being fed. Smiles or talks to image in mirror.
  • 7-8 months Pats image of self in mirror. Feeds self cracker. Holds bottle. Responds to name.
  • 9-10 months Puts hands around cup. Plays peekaboo. Shows shyness, fear of strangers, and clings to familiar persons. May not want to be left by mother.
  • 12 months Waves good-bye and pat-a-cakes. Cooperative with dress. Holds arm or leg out. Gives toys upon request. Drinks from cup without help.

Between One and Two

• Physical Milestones
  • 1-2 years pulse rate 105 ± 1.8
  • 1-2 year blood pressure 96 ± 27 systolic, 65 ± 27 diastolic
  • 1-2 year pulse 80-140, respiration 28-32
  • 1-2 year temperature : 99.6F rectal, 98.6F oral, 97.4F axillary
  • 1-2 year PaO2 85-100, PaCO2 35-45
  • 12 months the average child should weigh 23 lb. height 30 in.
  • 12 months weight should have tripled since birth and height should have increased by 50% over birth length
  • 12 months the head circumference should equal that of the chest
  • 12 months the anterior fontanelle (the front soft spot on the head) should be almost closed
  • 12 months the average child should have 6 teeth; lower lateral incisors (2) [deciduous] & anterior molars (4) [deciduous]
  • 12-18 months Babinski sign disappears

• 12 months - 2 1/2 years sleeps 10-12 hours night
• 12 months needs 6-8 diapers a day minimum
• 12 months may recognize when he has wet or soiled himself
• 12 months may walk a wide-legged gait, but may prefer crawling
• 12 months may walk with the support of one hand
• 12 months may stack blocks and try to build a tower out of two blocks
• 12 months turns through pages of a book by flipping many at a time
• 12 months can sit down without help
• 12 months may get to a standing position from a squat, pivot a quarter of the way around, and lower himself to a sitting position
• 12 months may become a very picky eater, and become more negative, especially at meals and naptime
• 12 months may give attention to people and objects
• 12 months may have renewed fear of strangers and strange situations
• 12-15 months walk alone or with a little help
• 12-15 months lower himself from a standing to a sitting position
• 12-15 months hold a cup to drink from
• 12-18 months learns bowel control
• 12-24 months voids urine 8+ times a day
• 12-24 months Landau reflex disappears
• 14 months the average child should weigh 24 lb. height 31 in.
• 15-18 months show a little cooperation at being dressed
• 15-18 months walk alone
• 15-18 months use a spoon
• 15-18 months build a tower of two blocks and fit a peg into its proper hole
• 18 months fontanelle closes
• 18 months the average child should have 12 teeth
• 18 months the average child should weigh 26 lb. height 32 1/2 in.
• 18 months growth slows
• 18 months the child is physically able to control sphincter muscles, but the child may not be psychologically ready to use the toilet
• 18 months there are usually two bowel movements per day; after breakfast and after supper, there may be a third in the midmorning standing at the side of the crib or playpen
• 18 months able to run with a lack of coordination
• 18 months falls frequently
• 18 months able to jump in place
• 18 months able to get onto chairs without assistance
• 18 months can build a tower of 3 to 4 blocks
• 18 months can turn the pages of a book two or three at a time
• 18 months abdomen protrudes, arms and legs lengthen
• 18 months fine muscle coordination begins to develop
• 18 months big muscles become well developed
• 18-24 months urinates every 2-3 hours
• 18-24 months canines (4) [deciduous]
• 18-24 months good control with a spoon
• 18-24 months throw a ball into a box
• 18-24 months build a high tower with blocks
• 18-24 months may start toilet training

• Sensory and Cognitive Milestones
  • 12 months follows a fast moving object
  • 12 months has control over response to sounds
  • 12 months searches for objects that are hidden, but unable to consider alternative locations
  • 12 months may develop attachment to a toy or object
  • 12 months experiences separation anxiety and may cling to parents
  • 12 months may make brief exploratory journeys away from parents in familiar settings
  • 18 months understands and able to identify through pointing common objects
  • 18 months frequently imitates
  • 18 months able to take off some clothing items; gloves, shoes & socks
  • 18 months begins to feel a sense of ownership identifying people and objects by saying "my"
• Language Milestones
  • 12 months comprehends several words
  • 12 months can say mamma, papa and at least two other words
  • 12 months comprehends simple commands
  • 12 months tries to imitate animal sounds
  • 12 months associates names with objects
  • 12-15 months say a few words
  • 12-15 months combines two words such as "daddy bye-bye"
  • 15-18 months have a five to ten word vocabulary
  • 18 months can say 10 or more words
  • 18 months uses words such as "more" to make wants known
  • 18-24 months say short sentences
    
    
• Social/Behavioral Milestones
  • 12 months Waves good-bye and plays pat-a-cake
  • 12 months Gives a toy when asked
  • 12 months Pints to his or her toes, eyes, and nose
  • 12 months Brings object from another room when asked
  • 15 months Feeds self. Uses a spoon, but is messy. Imitates Mother in household duties.
  • 18 months Drinks without much spilling. Takes off clothes.

Between Two and Three

• Physical Milestones
  • 2-12 1/2 years respiration rate 20 to 26 respirations per minute
  • 2-3 years pulse rate 93 ± 1.0
  • 2-3 year blood pressure 95 ± 24 systolic, 61 ± 24 diastolic
  • 2-3 year pulse 80-140, respiration 28-32
  • 2-3 year temperature : 99.6F rectal, 98.6F oral, 97.4F axillary
  • 2-3 year PaO2 85-100, PaCO2 35-45
  • 2-3 1/2 years learns bladder control
  • 24 months the average child should have 16 teeth
  • 24 months the average child should weigh 28 lb. height 34 1/2 in.
  • 2 years average female weight 26.4 lb. height 34 in.
  • 2 years average male weight 28.6 lb. height 34 in.
  • 2 years the circumference of the head should have increased to about 20 inches
  • 2 years the circumference of the growing chest should be larger than that of the head
  • 2 years the height is roughly half the total height the child will attain as an adult
  • 2 years the percent of (male) adult value of thigh 37%, calf 42%, foot 52%, upperarm 40%, forearm 47%, hand 54%
  • 2 years protruding abdomen less noticeable
  • 2 years may be psychologically ready for toilet training
  • 2 years may be bowel trained and may have daytime bladder control
  • 2 years can run with better coordination, while the stance may remain wide
  • 2 years can kick ball without loosing balance
  • 2 years can pick up objects while standing without losing balance
  • 2 years can build a tower of 6 to 7 cubes
  • 2 years can browse through a book one page at a time
  • 2 years able to turn a door knob
  • 24-30 months posterior molars (4) [deciduous]
  • 2 1/2 years the average child should have 20 teeth
  • 30 months the average child should weigh 32 lb. height 36 in.
  • 2 1/2 years average female weight 28.6 lb. height 351/2 in.
  • 2 1/2 years average male weight 30.8 lb. height 35 1/2 in.
  • 2 1/2 years has full set of baby teeth
  • 2-3 years Lordosis and protuberant abdomen of toddler disappear
  • 2-10 years 500-1000 ml/day urine production
• Sensory and Cognitive Milestones
  • vision fully developed
  • vocabulary has increased to about 300 words
  • can organize phrases of 2 to 3 words
  • able to communicate needs such as thirst, hunger, need to use the restroom
  • increased attention span
  • able to clothe self in simple apparel
• Language Milestones
  • Identifies body parts
  • Carries on 'conversation' with self and dolls
  • Asks "what's that?" And "where's my?"
  • Uses 2-word negative phrases such as "no want".
  • Forms some plurals by adding "s"; book, books
  • Has a 450 word vocabulary
  • Gives first name, holds up fingers to tell age
  • Combines nouns and verbs "mommy go"
  • Understands simple time concepts: "last night", "tomorrow"
  • Refers to self as "me" rather than by name
  • Tries to get adult attention: "watch me"
  • Likes to hear same story repeated
  • May say "no" when means "yes"
  • Talks to other children as well as adults
  • Solves problems by talking instead of hitting or crying
  • Answers "where" questions
  • Names common pictures and things
  • Uses short sentences like "me want more" or "me want cookie"
  • Matches 3-4 colors, knows big and little
• Social/Behavioral Milestones
  • 2 years Helps dress self. Less messy when eating. Turns down handle and opens door. Washes and dries hands.
  • 2 ½ years Helps put things away. Domestic make believe play. Toilet trained during the day.

Between Three and Four

• Physical Milestones
  • 3-4 years pulse rate 87 ± 0.7
  • 3-4 year blood pressure 99 ± 23 systolic, 65 ± 19 diastolic
  • 3-4 year pulse 80-120, respiration 24-28
  • 3-4 year temperature : 99.6F rectal, 98.6F oral, 97.4F axillary
  • 3-4 year PaO2 85-100, PaCO2 35-45
  • 3 years the average child should weigh 33 lb. height 38 in.
  • 3 years average female weight 30.8 lb. height 37 1/2 in.
  • 3 years average male weight 33 lb. height 37 1/2 in.
  • 3 years the percent of (male) adult value of thigh 44%, calf 47%, foot 58%, upperarm 47%, forearm 52%, hand 56%
  • 3 years during the 3rd year there is usually a weight gain of about 6 pounds
  • 3 years during the 3rd year there is usually a height gain of about 3 inches
  • 3 years should have daytime control over bowel and bladder functions and may have nighttime control as well
  • 3 years may stay dry all night
  • 3 years able to ride three wheel toys such as a tricycle or Big Wheel
  • 3 years improved balance
  • 3 years able to briefly balance on one foot
  • 3 years may walk up the stairs with alternating feet
  • 3 years can construct a block tower of 9 to 10 cubes
  • 3 years can easily place small objects in a small opening
  • 3 1/2 years the average child should weigh 35 lb. height 39 in.
  • 3 1/2 years average female weight 33 lb. height 38 1/2 in.
  • 3 1/2 years average male weight 35.2 lb. height 39 in.
• Sensory and Cognitive Milestones
  • 3 years able to completely clothe self, only requiring assistance with laces, buttons, and other fasteners in awkward places
  • 3 years attention span increasing
  • 3 years feeds self without difficulty
  • 3 years able to prepare uncomplicated meals
  • 3 years may experience an increase in imaginary fears
  • 3 years realization of own self and that of others
  • 3 years social encounters are acted out through play activities
  • 3 years both thought and behavior are egocentric
  • 3 years beginning to grasp the concept of time
  • 3 years decrease in separation anxiety for short periods of time
• Language Milestones
  • Can tell a story
  • Has a vocabulary of nearly 1000 words
  • Has a sentence length of 4-5 words
  • frequently asks questions
  • speech is nearly constant regardless of the presence of an audience
  • Names at least one color
  • Understands "yesterday," "summer", "lunchtime", "tonight", "little-big"
  • Begins to obey requests like "put the block under the chair"
  • Knows his or her last name, name of street on which he/she lives and several nursery rhymes
• Social/Behavioral Milestones
  • 3 years Feeds self well. Drinks with help. Puts on socks. Likes to help mother (set table & clean). Sometimes shares things.
    

Between Four and Five

• Physical Milestones
  • 4-5 years pulse rate 84 ± 0.7
  • 4 years the average child should weigh 37 lb. height 40 1/2 in.
  • 4 years average female weight 35.2 lb. height 40 in.
  • 4 years average male weight 37.4 lb. height 40 1/2 in.
  • 4 years the percent of (male) adult value of thigh 48%, calf 53%, foot 62%, upperarm 54%, forearm 56%, hand 60%
  • 4 years muscle width, arm + calf 8.2cm
  • 4 years weight gain of about 6 pounds during the 4th year
  • 4 years the height should be double their length at birth
  • 4 years improved balance
  • 4 years hops on one foot without losing balance
  • 4 years throws a ball overhand with coordination
  • 4 years skillfully cuts out a picture using scissors
  • 4 years may not be able to tie shoelaces
  • 4 years dry though night
  • 4-6 years average child weighs 44 lb. height 44 in.
  • 4 1/2 years the average child should weigh 39 lb. height 41 1/2 in.
  • 4 1/2 years average female weight 37.4 lb. height 41 1/2 in.
  • 4 1/2 years average male weight 39.6 lb. height 42 1/2 in.
    
• Sensory and Cognitive Milestones
  • 4 years tries to be very independent
  • 4 years increased aggressive behavior
  • 4 years readily discloses personal family matters to others
  • 4 years imaginary playmates are common
  • 4 years increased comprehension of time
  • 4 years able to distinguish between two objects based on simple criteria (such as size, weight, and so forth)
  • 4 years less egocentric behavior
  • 4 years believes that their thought and emotions are causative events
  • 4 years lack moral concept of right and wrong
  • 4 years rebellion is common if expectations are excessive
    
• Language Milestones
  • Has a vocabulary of nearly 1500 words
  • Has sentence length of 4-5 words
  • Uses past tense correctly
  • Points to colors red, blue, yellow and green
  • Identifies triangles, circles and squares
  • Understands "In the morning" , "next", "noontime"
  • Can speak of imaginary conditions such as "I hope"
  • Asks many questions, asks "who?" And "why?"
  • The age when the child will ask the most questions
  • May use words outside their comprehension
  • May begin using vulgar terms depending on their exposure
  • Learns and sings simple songs
• Social/Behavioral Milestones
  • 4 years Dresses self unassisted. Can button clothes. Washes and dries hands and brushes teeth unassisted. Understands taking turns.
    
    

Between Five and Six

• Physical Milestones
  • 5-6 years pulse rate 79 ± 0.6 and respiratory rate may decrease
  • 5 years the average child should weigh 42 lb. height 43 in.
  • 5-9 years early Lordosis disappears
  • 5-9 begins to lose baby teeth; first permanent teeth begin to erupt, permanent teeth then appear at a rate of 4 teeth per year from 7-14 years
  • 5 years average female weight 39.6 lb. height 42 1/2 in.
  • 5 years average male weight 41.8 lb. height 43 1/2 in.
  • 5 years the percent of (male) adult value of thigh 54%, calf 57%, foot 66%, upperarm 57%, forearm 60%, hand 64%
  • 5 years muscle width, arm + calf 8.5cm
  • 5 years increased coordination
  • 5 years skips, jumps, and skates with good balance
  • 5 years able to maintain balance while standing on one foot with eyes closed
  • 5 years able to tie own shoelaces
  • 5 years increased skill with simple tools and writing utensils
  • 5 1/2 years average female weight 41.8 lb. height 44 in.
  • 5 1/2 years average male weight 44 lb. height 44 1/2 in.
  • 6-7 years pulse rate 76 ± 0.6
  • 6 years average female weight 44 lb. height 45 1/2 in.
  • 6 years average male weight 46.2 lb. height 45 1/2 in.
  • 6 years the percent of (male) adult value of thigh 58%, calf 62%, foot 70%, upperarm 62%, forearm 63%, hand 66%
  • 6 years muscle width, arm + calf 8.8cm
  • 6-7 years first molars (4) [permanent]
  • 6 1/2 years average female weight 46.2 lb. height 46 1/2 in.
  • 6 1/2 years average male weight 48.4 lb. height 47 in.
    
• Sensory and Cognitive Milestones
  • 5 years increasingly responsible
  • 5 years decreased aggressiveness
  • 5 years some fears from earlier childhood are disappearing
  • 5 years able to accept the validity of others view and perspective, but may not understand it
  • 5 years increased mathematical skill
  • 5 years does not hesitate to question others, including parents
  • 5 years there is a strong identification with the parent of the same sex
    
• Language Milestones
  • Has a vocabulary of around 2000 words
  • Has a sentence length of 5-6 words
  • Defines objects by their use (you eat with a fork) and can tell what objects are made of
  • Knows spatial relations like "on top", "behind", "far" and "near"
  • Knows the names of the primary colors and may know the names of many more
  • Knows her address
  • Identifies a penny, nickel and dime
  • Knows common opposites like "big/little"
  • Understands "same" and "different"
  • Counts ten objects
  • Asks questions for information
  • Distinguished left and right hand in herself
  • Can compose sentences with all parts of speech
  • Questions are less superficial, addressing meaning and purpose
  • Uses all types of sentences, for example "let's go to the store after we eat"
  • At six years the vocabulary has increased to over 2100 words
  • At six years readily composes sentences of 6 to 8 words
• Social/Behavioral Milestones
  • 5 years Independent and self sufficient. Dresses and undresses self. Ties shoelaces. Uses knife and fork.
    
    

By Age Seven

• Physical Milestones
  • 7 years PMI located 5th or 6th left intercostal space at the midclavicular line or slightly medial to it
  • 7-8 years pulse rate 75 ± 0.7
  • 7 years average female weight 48.4 lb. height 47 1/2 in.
  • 7 years average male weight 50.6 lb. height 48 1/2 in.
  • 7 years the percent of (male) adult value of thigh 63%, calf 65%, foot 73%, upperarm 66%, forearm 67%, hand 69%
  • 7 years muscle width, arm + calf 9cm
  • 7-8 years incisors (8) [permanent]
  • 7-10 years average child weighs 62 lb. height 52 in.
  • 7 1/2 years average female weight 52.8 lb. height 49 in.
  • 7 1/2 years average male weight 52.8 lb. height 49 in.
    

By Age Eight

• Physical Milestones
  • 8-9 years pulse rate 73 ± 0.7
  • 8 years average female weight 55 lb. height 50 in.
  • 8 years average male weight 55 lb. height 50 in.
  • 8 years the percent of (male) adult value of thigh 66%, calf 70%, foot 76%, upperarm 69%,
  • forearm 70%, hand 72%
  • 8 years muscle width, arm + calf 9.3cm
  • 8 1/2 years average female weight 59.4 lb. height 50 1/2 in.
  • 8 1/2 years average male weight 59.4 lb. height 51 in.
    

By Age Nine

• Physical Milestones
  • 9-10 years pulse rate 70 ± 0.6
  • 9 years average female weight 63.8 lb. height 52 in.
  • 9 years average male weight 61.6 lb. height 52 in.
  • 9 years the percent of (male) adult value of thigh 72%, calf 74%, foot 81%, upperarm 72%, forearm 73%, hand 75%
  • 9 years muscle width, arm + calf 9.6cm
  • 9-10 years bicuspids (8) [permanent]
  • 9-12 years childish appearance of face disappears
  • 9 1/2 years average female weight 68.2 lb. height 53 in.
  • 9 1/2 years average male weight 66 lb. height 53 in.

By Age Ten

• Physical Milestones
  • 10-11 years pulse rate 67 ± 0.6
  • 10 years average female weight 72.6 lb. height 54 1/2 in.
  • 10 years average male weight 70.4 lb. height 54 in.
  • 10 years the percent of (male) adult value of thigh 75%, calf 79%, foot 84%, upperarm 77%, forearm 78%, hand 80%
  • 10 years muscle width, arm + calf 10cm
  • 10 years the size of testes 1.75ml
  • 10-14 years (female) breast development
  • 10-14 years (female) pubic hair appears
  • 10-16 years (female) growth rate increase
  • 10 1/2 years average female weight 77 lb. height 56 in.
  • 10 1/2 years average male weight 74.8 lb. height 55 in.
    

By Age Eleven

• Physical Milestones
  • 11-12 years pulse rate 67 ± 0.6
  • 11 years average female weight 81.4 lb. height 57 in.
  • 11 years average male weight 77 lb. height 56 1/2 in.
  • 11 years the percent of (male) adult value of thigh 80%, calf 82%, foot 87%, upperarm 81%, forearm 81%, hand 82%
  • 11 years muscle width, arm + calf 10.3cm
  • 11 years the size of testes 2.5ml
  • 11-14 years average female weight 101 lb. height 62 in.
  • 11-14 years average male weight 99 lb. height 62 in.
  • 11-15 years 700-1400 ml/day urine production
  • 11-16 years (male) pubic hair appears
  • 11-17 years (female) menstruation
  • 11-17 years (male) testicle growth
  • 11 1/2 years average female weight 85.8 lb. height 58 1/2 in.
  • 11 1/2 years average male weight 83.6 lb. height 58 in.

By Age Twelve

• Physical Milestones
  • 12-13 years pulse rate 66 ± 0.6
  • 12 years average female weight 92.4 lb. height 60 in.
  • 12 years average male weight 88 lb. height 59 in.
  • 12 years the percent of (male) adult value of thigh 85%, calf 86%, foot 90%, upperarm 83%, forearm 84%, hand 85%
  • 12 years muscle width, arm + calf 10.7cm
  • 12 years the size of testes 4.0ml
  • 12-14 years canines (4) [permanent]
  • 12-15 years second molars (4) [permanent]
  • 12-16 years underarm hair appears
  • 12-16 years (male) penis growth
  • 12-18 years (male) growth rate increase
  • 12 1/2 years respiration rate 12 to 18 respirations per minute
  • 12 1/2 years the forehead becomes more prominent (caused by the growth of brow ridges and air sinuses), both jaws grow forward(lower more than upper)
  • 12 1/2 years aureola diameter doubles from 1/2in. to 1 in. in males, and triples in females to 1 1/2in.
  • 12 1/2 years acceleration of penis growth
  • 12 1/2 years average female weight 96.8 lb. height 61 in.
  • 12 1/2 years average male weight 94.6 lb. height 60 in.
    

By Age Thirteen

• Physical Milestones
  • 13-14 years pulse rate 65 ± 0.8
  • 13 years average female weight 101.2 lb. height 62 in.
  • 13 years average male weight 99 lb. height 61 1/2 in.
  • 13 years the percent of (male) adult value of thigh 89%, calf 89%, foot 91%, upperarm 85%, forearm 86%, hand 87%
  • 13 years muscle width, arm + calf 11.3cm
  • 13 years the size of testes 7.2ml
  • 13-14 years (male) enlargement of voicebox
  • 13--18 years (male) underarm hair appears
  • 13 1/2 years average female weight 105.6 lb. height 62 1/2 in.
  • 13 1/2 years average male weight 105.6 lb. height 63 in.
    

By Age Fourteen

• Physical Milestones
  • 14-15 years pulse rate 62 ± 0.7
  • 14 years average female weight 110 lb. height 63 in.
  • 14 years average male weight 112.2 lb. height 64 in.
  • 14 years the percent of (male) adult value of thigh 92%, calf 92%, foot 94%, upperarm 91%, forearm 91%, hand 91%
  • 14 years muscle width, arm + calf 12cm
  • 14 years the size of testes 11ml
  • 14-17 years (male) deepening of voice
  • 14 1/2 years completion of penis growth
  • 14 1/2 years average female weight 114.4 lb. height 63 1/2 in.
  • 14 1/2 years average male weight 118.8 lb. height 65 1/2 in.
    

By Age Fifteen

• Physical Milestones
  • 15 years onward (male) 800-2000 ml/day urine production
  • 15 years onward (female) 800-1600 ml/day urine production
  • 15-16 years pulse rate 61 ± 0.9
  • 15 years average female weight 118.8 lb. height 63 1/2 in.
  • 15 years average male weight 125.4 lb. height 66 1/2 in.
  • 15 years the percent of (male) adult value of thigh 93%, calf 93%, foot 95%, upperarm 92%, forearm 92%, hand 93%
  • 15 years muscle width, arm + calf 12.5cm
  • 15 years the size of testes 15ml
  • 15-18 years average female weight 120 lb. height 64 in.
  • 15-18 years average male weight 145 lb. height 69 in.
  • 15 1/2 years average female weight 120 lb. height 64 in.
  • 15 1/2 years average male weight 132 lb. height 67 1/2 in.
    

By Age Sixteen

• Physical Milestones
  • 16-17 years pulse rate 61 ± 0.9
  • 16 years average female weight 120 lb. height 64 in.
  • 16 years average male weight 136.4 lb. height 68 1/2 in.
  • 16 years the percent of (male) adult value of thigh 93%, calf 94%, foot 95%, upperarm 95%, forearm 95%, hand 95%
  • 16 years muscle width, arm + calf 13.5cm
  • 16 years the size of testes 19ml
  • 16 1/2 years average female weight 120 lb. height 64 in.
  • 16 1/2 years average male weight 143 lb. height 69 in.
    

By Age Seventeen

• Physical Milestones
  • 17-18 years pulse rate 60 ± 1.4
  • 17 years average female weight 120 lb. height 64 in.
  • 17 years average male weight 147.4 lb. height 69 1/2 in.
  • 17 years the percent of (male) adult value of thigh 97%, calf 97%, foot 97%, upperarm 97%, forearm 97%, hand 97%
  • 17 years muscle width, arm + calf 14.1cm
  • 17 years the size of testes 21ml
  • 17-25 years third molars (4) [permanent]
  • 17 1/2 years average female weight 120 lb. height 64 in.
  • 17 1/2 years average male weight 149.6 lb. height 70 in.
    

By Age Eighteen

• Physical Milestones
  • 18 years average female weight 120 lb. height 64 in.
  • 18 years average male weight 151.8 lb. height 70 in.
  • 18 years the percent of (male) adult value of thigh 100%, calf 100%, foot 100%, upperarm 100%, forearm 100%, hand 100%
  • 18 years muscle width, arm + calf 14.4cm
  • 18 years the size of testes 21ml
    

Above Age Eighteen

• 19-22 years average female weight 120 lb. height 64 in.
• 19-22 years average male weight 154 lb. height 70 in.
• 23-50 years average female weight 120 lb. height 64 in.
• 23-50 years average male weight 154 lb. height 70 in.
  

1. Note that the weight curve is the 50th percentile for all groups

Email BitterGrey Level: Advanced | Status: Finished | Last Update: 15 May 2001