Boys' growth chart: 12 to 24 months

Now that your baby boy is over one year old (12-24 months), your doctor will only call him to track his growth once every two months.

This is unlike the first year when he was measured every month. His height, weight and head circumference were tracked on his growth chart. The resulting growth curve gave an indication to his doctor of how well he was developing.

But your paediatrician will continue to check that your son is growing along his percentile curve.

To understand more about what growth charts and percentile curves mean, and how they are used, please see our article on growth charts: understanding the results.

One-year-old boy's growth chart

The growth chart below gives a range between the 3rd and 97th percentile of the WHO growth standards for boys between 12 and 24 months. Checking that your son fits into this range can reassure you that he is within the normal range of height, weight and head circumference measurements for his age.

But to track whether your toddler is growing adequately over time, you will need to use a chart that shows his growth curve and percentile.

Boy's growth standards 12 to 24 months*
Months	Length (cm) 3rd to 97th percentile	Weight (kg) 3rd to 97th percentile	Head circumference (cm) 3rd to 97th percentile
12	71.3 - 80.2	7.8 - 11.8	43.6 - 48.5
13	72.4 - 81.5	8.0 - 12.1	43.9 - 48.8
14	73.4 - 82.7	8.2 - 12.4	44.1 - 49.0
15	74.4 - 83.9	8.4 - 12.7	44.3 - 49.3
16	75.4 - 85.1	8.5 - 12.9	44.5 - 49.5
17	76.3 - 86.2	8.7 - 13.2	44.7 - 49.7
18	77.2 - 87.3	8.9 - 13.5	44.9 - 49.9
19	78.1 - 88.4	9.0 - 13.7	45.0 - 50.0
20	78.9 - 89.5	9.2 - 14.0	45.2 - 50.2
21	79.7 - 90.5	9.3 - 14.3	45.3 - 50.4
22	80.5 - 91.6	9.5 - 14.5	45.4 - 50.5
23	81.3 - 92.6	9.7 - 14.8	45.6 - 50.7
24	82.1 - 93.6	9.8 - 15.1	45.7 - 50.8

*Source: WHO child growth standards

See our toddler milestone charts next and find out what skills most children have mastered at each age:

• 13 to 18 months
• 19 to 24 months
• 25 to 30 months
• 31 to 36 months