Height: 57.3 - 67.6 cm
Weight: 5 - 7.2 kg
The height and weight of a boy at 3 months is 57.3 - 67.6 cm and 5 - 7.2 kg.
| Height | Description |
|---|---|
| Less than 55.3 cm | Below normal (extremely short) |
| 55.3 - 57.3 cm | Below normal (undersized) |
| 57.3 - 59.4 cm | Normal (below average) |
| 59.4 - 63.5 cm | Normal (average) |
| 63.5 - 65.5 cm | Normal (above average) |
| 65.5 - 67.6 cm | OK (high) |
| More than 67.6 cm | Very tall |
| The weight | Description |
|---|---|
| Less than 4.4 kg | Below normal (extremely insufficient) |
| 4.4 - 5.0 kg | Below normal (insufficient) |
| 5.0 - 5.7 kg | Normal (below average) |
| 5.7 - 7.2 kg | Normal (average) |
| 7.2 - 8.0 kg | Normal (above average) |
| 8.0 - 9.0 kg | Normal (very large) |
| More than 9.0 kg | Doesn't match age |
You can use the BMI calculator to get a more accurate estimate of your child's age and height.
Learn about the developmental characteristics of a baby at 3 months
