How much your child needs depends on their age and weight. Fluid needs are greatest during the first months.

How much fluid should my child drink?
How much your child needs depends on their age and weight. Fluid needs are greatest during the first months. It is crucial to avoid fluid losses especially when your baby is very young. A rough guide to average fluid requirements is given here (remember that for very young babies, milk should provide the bulk of their fluid intake).
BOYS |
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Age |
Average Weight (Kg) |
Fluid Requirement * |
0-6 months |
3.5 – 7 |
150mls/kg/day |
7-12 months |
7-11 |
150mls/kg/day |
1 Year |
11.5 |
1.1 l/day |
2 Years |
13.5 |
1.3 l/day |
3-4 Years |
16.5 |
1.5 l/day |
5-6 Years |
20 |
1.7/day |
GIRLS |
||
0-6 months |
3.7-7 |
150mls/kg/day |
7-12 months |
7-11 |
150mls/kg/day |
1 Year |
11 |
1.1 l/day |
2 Years |
13.5 |
1.3 l/day |
3-4 Years |
16 |
1.5 l/day |
5-6 Years |
20 |
1.7/day |