Daily fluid needs (Holliday-Segar and mL/kg)
Maintenance fluid per day: Holliday-Segar for children, 30 to 35 mL/kg for adults, and 1 mL/kcal when an energy goal is given.
Inputs
0 of 2Actual (total) body weight
years
Optional; adds the 1 mL/kcal method.
kcal/day
Patient values are shared with every calculator.
When to use
- Daily maintenance fluid goal for enteral or oral nutrition plans.
Pearls and pitfalls
- Adults: many protocols use 30 to 35 mL/kg/day (lower, about 25 to 30 mL/kg, in older adults or with heart or kidney failure).
- Add ongoing losses (fever, drains, diarrhea); restrict in heart failure, kidney failure or SIADH.
- Hourly IV maintenance by the 4-2-1 rule is in the maintenance fluids calculator.
Why use
Shows the pediatric and adult methods side by side.
Holliday-Segar: 100 mL/kg for the first 10 kg + 50 mL/kg for the next 10 kg + 20 mL/kg above 20 kg (per day). Adults: 30 to 35 mL/kg/day; or 1 mL per kcal