notamedik

Paediatric Fluid Calculator

Use ideal body weight for obese children.

Dehydration

Enter weight to see results.

Show formula

Maintenance (Holliday-Segar):
First 10 kg: 100 ml/kg/day (4 ml/kg/hr)
Next 10 kg: 50 ml/kg/day (2 ml/kg/hr)
All additional kg: 20 ml/kg/day (1 ml/kg/hr)

Deficit:
Deficit (ml) = (% dehydration ÷ 100) × weight (kg) × 1000

Source: Holliday MA, Segar WE. The maintenance need for water in parenteral fluid therapy. Pediatrics. 1957;19(5):823–832.