Boys Height Weight Chart Birth to 20 Years Printable
Author: Ian C. Langtree - Writer/Editor for Disabled World (DW)
Published: 2023/08/21 - Updated: 2026/01/18
Publication Type: Charts, Graphs, Tables
Contents: Synopsis - Introduction - Main - Insights, Updates - Related Publications
Synopsis: This resource provides a detailed reference chart for monitoring male growth patterns from infancy through young adulthood. Healthcare providers, parents, and caregivers rely on these standardized measurements to assess whether a child's physical development falls within typical ranges for his age group. The data becomes particularly valuable when tracking boys through adolescence, when growth spurts can create temporary variations from average measurements. Since each boy develops at his own pace, the chart serves as a guideline rather than a rigid standard, helping identify when growth patterns might warrant professional medical evaluation. The printable format makes it practical for home use or clinical settings where quick reference to age-specific height and weight norms is needed.
Introduction
Our printable chart below forms part of our average height to weight chart - babies to teenagers page, and outlines the average weight to height scale for males aged from birth to 20 years old. Normal growth is categorized in a range used by pediatricians to gauge how a child is growing.
Main Content
| Age | Weight | Length |
|---|---|---|
| Birth | 7.4 lb (3.3 kg) | 19.6" (49.8 cm) |
| 1 Month | 9.8 lb (4.4 kg) | 21.6" (54.8 cm) |
| 2 Months | 12.3 lb (5.58 kg) | 23.0" (58.4 cm) |
| 3 Months | 14.1 lb (6.4 kg) | 24.2" (61.4 cm) |
| 4 Months | 15.4 lb (7 kg) | 25.2" (64 cm) |
| 5 Months | 16.6 lb (7.53 kg) | 26.0" (66 cm) |
| 6 Months | 17.5 lb (7.94 kg) | 26.6" (67.5 cm) |
| 7 Months | 18.3 lb (8.3 kg) | 27.2" (69 cm) |
| 8 Months | 19.0 lb (8.62 kg) | 27.8" (70.6 cm) |
| 9 Months | 19.6 lb (8.9 kg) | 28.3" (71.8 cm) |
| 10 Months | 20.1 lb (9.12 kg) | 28.8" (73.1 cm) |
| 11 Months | 20.8 lb (9.43 kg) | 29.3" (74.4 cm) |
| Toddler Boys (12-23 Months) | ||
| Age | Weight | Length |
| 12 Months | 21.3 lb (9.66 kg) | 29.8" (75.7 cm) |
| 13 Months | 21.8 lb (9.89 kg) | 30.3" (76.9 cm) |
| 14 Months | 22.3 lb (10.12 kg) | 30.7" (77.9 cm) |
| 15 Months | 22.7 lb (10.3 kg) | 31.2" (79.2 cm) |
| 16 Months | 23.2 lb (10.52 kg) | 31.6" (80.2 cm) |
| 17 Months | 23.7 lb (10.75 kg) | 32.0" (81.2 cm) |
| 18 Months | 24.1 lb (10.93 kg) | 32.4" (82.2 cm) |
| 19 Months | 24.6 lb (11.16 kg) | 32.8" (83.3 cm) |
| 20 Months | 25.0 lb (11.34 kg) | 33.1" (84 cm) |
| 21 Months | 25.5 lb (11.57 kg) | 33.5" (85 cm) |
| 22 Months | 25.9 lb (11.75 kg) | 33.9" (86.1 cm) |
| 23 Months | 26.3 lb (11.93 kg) | 34.2" (86.8 cm) |
| Boys Ages 2-12 | ||
| Age | Weight | Height |
| 2 Years | 27.5 lb (12.47 kg) | 34.2" (86.8 cm) |
| 3 Years | 31.0 lb (14.06 kg) | 37.5" (95.2 cm) |
| 4 Years | 36.0 lb (16.33 kg) | 40.3" (102.3 cm) |
| 5 Years | 40.5 lb (18.37 kg) | 43.0" (109.2 cm) |
| 6 Years | 45.5 lb (20.64 kg) | 45.5" (115.5 cm) |
| 7 Years | 50.5 lb (22.9 kg) | 48.0" (121.9 cm) |
| 8 Years | 56.5 lb (25.63 kg) | 50.4" (128 cm) |
| 9 Years | 63.0 lb (28.58 kg) | 52.5" (133.3 cm) |
| 10 Years | 70.5 lb (32 kg) | 54.5" (138.4 cm) |
| 11 Years | 78.5 lb (35.6 kg) | 56.5" (143.5 cm) |
| 12 Years | 88.0 lb (39.92 kg) | 58.7" (149.1 cm) |
| Teenage Boys (13-20 Years) | ||
| Age | Weight | Height |
| 13 Years | 100.0 lb (45.36 kg) | 61.5" (156.2 cm) |
| 14 Years | 112.0 lb (50.8 kg) | 64.5" (163.8 cm) |
| 15 Years | 123.5 lb (56.02 kg) | 67.0" (170.1 cm) |
| 16 Years | 134.0 lb (60.78 kg) | 68.3" (173.4 cm) |
| 17 Years | 142.0 lb (64.41 kg) | 69.0" (175.2 cm) |
| 18 Years | 147.5 lb (66.9 kg) | 69.2" (175.7 cm) |
| 19 Years | 152.0 lb (68.95 kg) | 69.5" (176.5 cm) |
| 20 Years | 155.0 lb (70.3 kg) | 69.7" (177 cm) |
Printable Chart
To print the above chart click "File" and then "Print". Or, use a keyboard shortcut:
Mac: Command-key + p
Windows and Linux: Ctrl + p
In the window that appears, select the destination and change your preferred print settings.
Click "Print".
Other Printable Height to Weight Reference Charts:
*Information and data for above growth charts sourced from The World Health Organization (WHO), Gerontology Research Center (National Institutes of Health (NIH), USA), and the U.S. Centers for Disease Control and Prevention (CDC).
Insights, Analysis, and Developments
Editorial Note: While these measurements represent statistical averages derived from large population studies, parents should remember that healthy boys come in many different sizes and shapes. A child who falls outside these ranges isn't necessarily facing a health concern, especially if he's growing consistently along his own curve. What matters most is steady progress over time rather than matching a specific number at a given age. Still, significant deviations or sudden changes in growth patterns deserve attention from a pediatrician, who can evaluate the whole picture of a child's health, family genetics, nutrition, and overall development. This chart works best as one tool among many for understanding how a boy is growing, not as a definitive measure of his health or potential.
Author Credentials: Ian is the founder and Editor-in-Chief of Disabled World, a leading resource for news and information on disability issues. With a global perspective shaped by years of travel and lived experience, Ian is a committed proponent of the Social Model of Disability-a transformative framework developed by disabled activists in the 1970s that emphasizes dismantling societal barriers rather than focusing solely on individual impairments. His work reflects a deep commitment to disability rights, accessibility, and social inclusion. To learn more about Ian's background, expertise, and accomplishments, visit his full biography.