Age Reference Size Charts

These size charts are to be used for reference only. Scroll down to find the age range you need. To insure the best fit for your child, it is best to have our child's specific measurements. Please use our OT & PT Size Help page.

The Human measurement data and dimensioned drawings below were collected for educational purposes from a book entitled "The Measure of Man and Woman: Human Factors in Design" by Alvin R. Tilley, Henry Dreyfuss Associates, New York. Published by Whitney Library of Design, an imprint of Watson-Guptill Publications, New York, 1993.

Graphic displaying measurements for the average 2-month-old child. Chart to the right lists out all the measurements.

Dimensions	2 Months
Overall Average Height	21.9” (55.5 cm)
Back Height to Head	15.1” (38.4 cm)
Chest Width	4.6” (11.6 cm)
Hip Width	5.1” (12.9 cm)
Floor to Hip	9.2” (23.3 cm)
Inseam	6.8” (17.1 cm)
Thigh Depth	3.4” (8.6 cm)
Foot to Knee	3.7” (9.4 cm)

Dimensions	6-8 Months
Overall Average Height	27" (68.7 cm)
Back Height to Head	17.8" (43.3 cm)
Chest Width	5.7" (14.5 cm)
Hip Width	6.3" (15.9 cm)
Floor to Hip	11.6" (29.4 cm)
Inseam	9.2" (23.4 cm)
Thigh Depth	4.6" (11.7 cm)
Foot to Knee	4.8" (12.2 cm)

Dimensions	12-15 Months
Overall Average Height	30.2" (73.7 cm)
Back Height to Head	19.2" (48.9 cm)
Chest Width	6.2" (15.7 cm)
Hip Width	6.5" (16.6 cm)
Floor to Hip	11.6" (29.4 cm)
Inseam	11" (24.6 cm)
Thigh Depth	5.7" (14.5 cm)
Foot to Knee	6.1" (15.4 cm)

Dimensions	20-23 Months
Overall Average Height	32.5" (82.5 cm)
Back Height to Head	20.3" (51.5 cm)
Chest Width	6.3" (16 cm)
Hip Width	6.6" (16.7 cm)
Floor to Hip	15.6" (39.5 cm)
Inseam	12.2" (31 cm)
Thigh Depth	6.6" (16.6 cm)
Foot to Knee	7" (17.6 cm)

Dimensions	2.5 – 3 Years
Overall Height	36.8” (93.4 cm)
Back Height to Head	21.5” (54.5 cm)
Back Height to Shoulder	12.8” (33 cm)
Chest Width	6.3” (16 cm)
Hip Width	7.5” (19 cm)
Floor to Elbow	21.2” (53.3 cm)
Floor to Hip	17.5” (43.9 cm)
Inseam	15.5” (38.8 cm)
Thigh Depth	9.2” (23.4 cm)
Foot to Knee	8.6” (21.8 cm)

Dimensions	4 Years
Overall Height	39.9" (101.4 cm)
Back Height to Head	22.6" (57.5 cm)
Back Height to Shoulder	13.5" (34.3 cm)
Chest Width	6.6" (16.7 cm)
Hip Width	7.8" (19.8 cm)
Floor to Elbow	22.9" (58.1 cm)
Floor to Hip	19.3" (49 cm)
Inseam	17.3" (43.9 cm)
Thigh Depth	10.3" (26.1 cm)
Foot to Knee	9.7" (24.9 cm)

Dimensions	6 Years
Overall Height	45" (114.5" cm)
Back Height to Head	24.9" (63.3 cm)
Back Height to Shoulder	15.2" (38.6 cm)
Chest Width	7" (17.9 cm)
Hip Width	8.4" (21.3 cm)
Floor to Elbow	26.3" (66.9 cm)
Floor to Hip	22.6" (57.6 cm)
Inseam	20.2" (51.5 cm)
Thigh Depth	11.9" (30.2 cm)
Foot to Knee	11.5" (29.1 cm)

Dimensions	8 Years
Overall Height	49.8" (126.4 cm)
Back Height to Head	26.8" (68 cm)
Back Height to Shoulder	17" (43.2 cm)
Chest Width	7.8" (19.7 cm)
Hip Width	9.3" (23.5 cm)
Floor to Elbow	29.8" (75.7 cm)
Floor to Hip	25.7" (65.3 cm)
Inseam	23" (58.7 cm)
Thigh Depth	13.5" (34.2 cm)
Foot to Knee	12.9" (32.7 cm)

Dimensions	10 Years
Overall Height	54.2" (137.6 cm)
Back Height to Head	28.4" (72.1 cm)
Back Height to Shoulder	17.9" (45.4 cm)
Chest Width	8.2" (20.8 cm)
Hip Width	10.1" (25.7 cm)
Floor to Elbow	32.5" (82.4 cm)
Floor to Hip	28.6" (72.6 cm)
Inseam	25.8" (65.5 cm)
Thigh Depth	15.2" (38.5 cm)
Foot to Knee	14.3" (36.3 cm)

Dimensions	12 Years
Overall Height	58.5" (148.6 cm)
Back Height to Head	30" (76.3 cm)
Back Height to Shoulder	18.5" (48.7 cm)
Chest Width	8.7" (22.2 cm)
Hip Width	11" (28 cm)
Floor to Elbow	32.5" (82.4 cm)
Floor to Hip	31.4" (79.8 cm)
Inseam	28.6" (72.6 cm)
Thigh Depth	16.7" (42.4 cm)
Foot to Knee	15.6" (39.7 cm)

Dimensions	13 Years
Overall Height	60.8" (154.5 cm)
Back Height to Head	31.4" (79.7 cm)
Back Height to Shoulder	19.9" (50.5 cm)
Chest Width	11.6" (29.4 cm)
Hip Width	11.6" (29.4 cm)
Floor to Elbow	36.5" (93 cm)
Floor to Hip	32.4" (82.3 cm)
Inseam	29.4" (74.7 cm)
Thigh Depth	17.2" (43.7 cm)
Foot to Knee	15.9" (40.4 cm)

Dimensions	14 Years
Overall Height	62.8" (159.4 cm)
Back Height to Head	32.4" (82.3 cm)
Back Height to Shoulder	20.2" (51.3 cm)
Chest Width	12.2" (31.1 cm)
Hip Width	12.2" (31.1 cm)
Floor to Elbow	37.4" (95 cm)
Floor to Hip	33.4" (84.8 cm)
Inseam	30.4" (77.2 cm)
Thigh Depth	17.8" (45.1 cm)
Foot to Knee	16.3" (41.3 cm)

Dimensions	16 Years
Overall Height	66.3" (168.5 cm)
Back Height to Head	34.5" (87.6 cm)
Back Height to Shoulder	21.8" (55.4 cm)
Chest Width	10.4" (26.5 cm)
Hip Width	13.2" (33.5 cm)
Floor to Elbow	39.9" (101.5 cm)
Floor to Hip	35" (88.9 cm)
Inseam	32" (81.3 cm)
Thigh Depth	18.9" (49.9 cm)
Foot to Knee	17.1" (43.3 cm)

Dimensions	50th percentile - Adult Male Frontal View
Overall Height	69.1" (175.5 cm)
Back Height to Head	36" (91.4 cm)
Back Height to Shoulder	23.6" (60 cm)
Chest Width	12.2" (31 cm)
Hip Width	14.2" (36.1 cm)
Floor to Elbow	42.3" (107.4 cm)
Floor to Hip	36.9" (93.7 cm)
Inseam	32.6" (82.8 cm)
Thigh Depth	19.4" (50 cm)
Foot to Knee	17.5" (44.4 cm)

Dimensions	50th percentile - Adult Male Side View
Overall Height	69.1" (175.5 cm)
Back Height to Head	36" (91.4 cm)
Back Height to Shoulder	23.6" (60 cm)
Chest Width	12.2" (31 cm)
Hip Width	14.2" (36.1 cm)
Floor to Elbow	42.3" (107.4 cm)
Floor to Hip	36.9" (93.7 cm)
Inseam	32.6" (82.8 cm)
Thigh Depth	19.4" (50 cm)
Foot to Knee	17.5" (44.4 cm)

Dimensions	50th percentile - Adult Female Front View
Overall Height	64" (162.6 cm)
Back Height to Head	33.8 (85.9 cm)
Back Height to Shoulder	22" (55.9 cm)
Chest Width	10.4" (26.4 cm)
Hip Width	14.6" (37.1 cm)
Floor to Elbow	39" (99.1 cm)
Floor to Hip	33.4" (84.8 cm)
Inseam	29.8" (75.7 cm)
Thigh Depth	19.2" (48.8 cm)
Foot to Knee	15.9" (40.5 cm)

Dimensions	50th percentile - Adult Female Side View
Overall Height	64" (162.6 cm)
Back Height to Head	33.8 (85.9 cm)
Back Height to Shoulder	22" (55.9 cm)
Chest Width	10.4" (26.4 cm)
Hip Width	14.6" (37.1 cm)
Floor to Elbow	39" (99.1 cm)
Floor to Hip	33.4" (84.8 cm)
Inseam	29.8" (75.7 cm)
Thigh Depth	19.2" (48.8 cm)
Foot to Knee	15.9" (40.5 cm)

Age Reference Size Charts

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