Boys
Height: 50.8 - 60.6 cm
Weight: 3.4 - 5.1 kg
The height and weight of a boy at 1 month is normally 50.8 - 60.6 cm and 3.4 - 5.1 kg
| Height | Description |
|---|---|
| Less than 48.9 cm | Below normal (extremely short) |
| 48.9 - 50.8 cm | Below normal (undersized) |
| 50.8 - 52.8 cm | Normal (below average) |
| 52.8 - 56.7 cm | Normal (average) |
| 56.7 - 58.6 cm | Normal (above average) |
| 58.6 - 60.6 cm | OK (high) |
| More than 60.6 cm | Very tall |
| The weight | Description |
|---|---|
| Less than 2.9 kg | Below normal (extremely insufficient) |
| 2.9 - 3.4 kg | Below normal (insufficient) |
| 3.4 - 3.9 kg | Normal (below average) |
| 3.9 - 5.1 kg | Normal (average) |
| 5.1 - 5.8 kg | Normal (above average) |
| 5.8 - 6.6 kg | Normal (very large) |
| More than 6.6 kg | Doesn't match age |
Girls
Height: 49.8 - 59.5 cm
Weight: 3.2 - 4.8 kg
The height and weight of a girl at 1 month is normally 49.8 - 59.5 cm and 3.2 - 4.8 kg
| Height | Description |
|---|---|
| Less than 47.8 cm | Below normal (extremely short) |
| 47.8 - 49.8 cm | Below normal (undersized) |
| 49.8 - 51.7 cm | Normal (below average) |
| 51.7 - 55.6 cm | Normal (average) |
| 55.6 - 57.6 cm | Normal (above average) |
| 57.6 - 59.5 cm | OK (high) |
| More than 59.5 cm | Very tall |
| The weight | Description |
|---|---|
| Less than 2.7 kg | Below normal (extremely insufficient) |
| 2.7 - 3.2 kg | Below normal (insufficient) |
| 3.2 - 3.6 kg | Normal (below average) |
| 3.6 - 4.8 kg | Normal (average) |
| 4.8 - 5.5 kg | Normal (above average) |
| 5.5 - 6.2 kg | Normal (very large) |
| More than 6.2 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 features of a baby at 1 month
