Maintenance Fluid Calculator (Holliday-Segar)

Clinical context

The Holliday-Segar method is primarily used in pediatrics to estimate daily maintenance fluid requirements. Weight-based rule: • First 10 kg: 100 mL/kg/day • Next 10 kg (10-20 kg): 50 mL/kg/day • Each kg above 20 kg: 20 mL/kg/day This is a baseline estimate and should be adjusted for fever, dehydration, renal/cardiac disease, ongoing losses, and local protocol.