Boys
Height: 59.7 - 70.1 cm
Weight: 5.6 - 7.8 kg
The height and weight of a boy at 4 months is 59.7 - 70.1 cm and 5.6 - 7.8 kg
| Height | Description |
|---|---|
| Less than 57.6 cm | Below normal (extremely short) |
| 57.6 - 59.7 cm | Below normal (undersized) |
| 59.7 - 61.8 cm | Normal (below average) |
| 61.8 - 66.0 cm | Normal (average) |
| 66.0 - 68.0 cm | Normal (above average) |
| 68.0 - 70.1 cm | OK (high) |
| More than 70.1 cm | Very tall |
| The weight | Description |
|---|---|
| Less than 4.9 kg | Below normal (extremely insufficient) |
| 4.9 - 5.6 kg | Below normal (insufficient) |
| 5.6 - 6.2 kg | Normal (below average) |
| 6.2 - 7.8 kg | Normal (average) |
| 7.8 - 8.7 kg | Normal (above average) |
| 8.7 - 9.7 kg | Normal (very large) |
| More than 9.7 kg | Doesn't match age |
Girls
Height: 57.8 - 68.6 cm
Weight: 5 - 7.3 kg
The height and weight of a girl at 4 months of age is 57.8 - 68.6 cm and 5 - 7.3 kg
| Height | Description |
|---|---|
| Less than 55.6 cm | Below normal (extremely short) |
| 55.6 - 57.8 cm | Below normal (undersized) |
| 57.8 - 59.9 cm | Normal (below average) |
| 59.9 - 64.3 cm | Normal (average) |
| 64.3 - 66.4 cm | Normal (above average) |
| 66.4 - 68.6 cm | OK (high) |
| More than 68.6 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 - 7.3 kg | Normal (average) |
| 7.3 - 8.2 kg | Normal (above average) |
| 8.2 - 9.3 kg | Normal (very large) |
| More than 9.3 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 4 months
