Typical fluid needs

There are several methods used to estimate a child’s fluid needs. Whichever method is used, it is critical to consider factors that might increase an individual’s needs, including environment (temperature and humidity), sodium intake, losses (e.g., with excessive drooling, diarrhea, or through wounds), and specific medical conditions and medications (e.g., renal disease and diuretics). 

(Some factors common among children with specific conditions are listed in Section 3, Influence of Special Health Care Needs.)

Healthy Infants

• 1.5 mL/kcal/day for healthy infants
  or
• 80 to 120 mL/kg/day (for infants up to 10 kg)

* For premature infants, consult with specialty providers, especially for conditions such as bronchopulmonary dysplasia (BPD) or cardiac conditions, in which fluid needs may be increased or decreased.

Healthy Children

• 80 to 120 mL/kg/day (for children up to 10 kg)
  1000 mL/day + 50 mL/kg above 10 kg (for children 10-20 kg)
  1500 mL/day + 20 mL/kg above 20 kg (for children over 20 kg)
  or
• 50 to 60 mL/kg/day