Fluid Maintenance Calculator (4-2-1 Rule)

Calculate maintenance IV fluid rate using the 4-2-1 rule

Total weight or mass value. Convert between units as needed (1 kg = 2.2 lbs).
kg

Results

Maintenance Rate:
Calculated maintenance rate based on your inputs.
-mL/hr
Daily Volume:
Calculated three-dimensional space.
-mL/day
Reference: Industry Standards.