Average Weight for a 5-Year-Old Boy

The average (50th-percentile) weight for a 5-year-old boy (60 months) is 18.3 kg (40.4 lb), based on the WHO Child Growth Standards. Across the healthy range, most boys this age weigh between 14.3 kg (31.5 lb) and 23.8 kg (52.4 lb).

What's typical at this age

By age five, weight is typically getting on for double what it was at the first birthday, and growth stays on this steady path until the puberty years. A child's build — like their parents' — matters more than comparisons with classmates.

A percentile compares your boy to other boys the same age — the 50th is simply the middle. Being above or below it is usually completely normal; a child who has always tracked the 15th or 85th percentile is typically growing exactly as they should. What pediatricians watch for is a sudden change in the pattern, not the number itself.

Percentiles calculated from the WHO Child Growth Standards (2006). For information only — not medical advice. If you're concerned about your child's growth, speak to your pediatrician or health visitor. Full disclaimer.