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BMI chart for boys

The median and outer lines at each age. Open a row for the full percentile table, a chart and a CSV.

WHO 2006 · CDC 2000 · retrieved 2026-10-05Same chart for girls
AgeStandardLower lineMedianUpper line
2 yearsCDC 200014.7 (5th)16.619.3 (95th)
3 yearsCDC 200014.3 (5th)16.018.3 (95th)
4 yearsCDC 200014.0 (5th)15.617.8 (95th)
5 yearsCDC 200013.8 (5th)15.417.9 (95th)
6 yearsCDC 200013.7 (5th)15.418.4 (95th)
7 yearsCDC 200013.7 (5th)15.519.1 (95th)
8 yearsCDC 200013.8 (5th)15.820.0 (95th)
9 yearsCDC 200014.0 (5th)16.121.0 (95th)
10 yearsCDC 200014.2 (5th)16.622.1 (95th)
11 yearsCDC 200014.5 (5th)17.223.2 (95th)
12 yearsCDC 200015.0 (5th)17.824.2 (95th)
13 yearsCDC 200015.4 (5th)18.425.1 (95th)
14 yearsCDC 200016.0 (5th)19.126.0 (95th)
15 yearsCDC 200016.5 (5th)19.826.8 (95th)
16 yearsCDC 200017.1 (5th)20.527.5 (95th)
17 yearsCDC 200017.7 (5th)21.228.2 (95th)
18 yearsCDC 200018.2 (5th)21.928.9 (95th)
19 yearsCDC 200018.7 (5th)22.529.7 (95th)
20 yearsCDC 200019.1 (5th)23.030.6 (95th)