A diaper calculator is an online tool that helps parents determine the right size of diaper for their baby. It takes into account the baby’s weight, age, and other factors to provide an accurate recommendation.
Diaper size chat by Age
Diaper Size | Age | Weight |
1 | 2-4 months | 8-14 lbs (4-6 kg) |
2 | 4-7 months | 12-18 lbs (5-8 kg) |
3 | 7-20 months | 16-28 lbs (7-13 kg) |
4 | 18-48 months | 22-37 lbs (9-17 kg) |
Diaper size chart by weight
Diaper size | Baby weight (in pounds) | Average number of diapers per day |
Size 1 diapers | 8-14 | up to 9 |
Size 2 diapers | 12-18 | up to 8 |
Size 3 diapers | 16-28 | up to 7 |
Size 4 diapers | 22-37 | up to 7 |
Baby Weight Chart
Age | 50th centile weight for baby boys | 50th centile weight for baby girls |
2 months | 5.2 kg (11.5lbs) | 4.8 kg (10.5lbs) |
3 months | 6 kg (13.2lbs) | 5.4 kg (12lbs) |
4 months | 6.7 kg (14.8lbs) | 6.2 kg (13.7lbs) |
5 months | 7.4 kg (16.3lbs) | 6.7 kg (14.7lbs) |