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)