Maintenance Fluid Calculation for Children

Input:
Weight
Results:
Daily Volume (mL)
Fluid Rate
 
FluidRate = DailyVol / 24
  • For infants 3.5 to 10 kg the daily fluid requirement is 100 mL/kg.
  • For children 11-20 kg the daily fluid requirement is 1000 mL + 50 mL/kg for every kg over 10.
  • For children > 20 kg the daily fluid requirement is 1500 mL + 20 mL/kg for every kg over 20, up to a maximum of 2400 mL daily.
  • Please note that this calculation does not apply to newborn infants (ie, from 0 to 28 days after full term delivery).
  1. Holliday MA, Segar WE. The maintenance need for water in parenteral fluid therapy. Pediatrics. Vol. 19, 1957 823-832.
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