💧 Pediatric Maintenance Fluids Calculator (4-2-1 Rule)

This calculator estimates pediatric maintenance IV fluid requirements using the 4-2-1 rule, based on body weight to calculate hourly rate and total daily volume.

When to use

• To calculate weight-based pediatric maintenance fluids.
• When estimating hourly IV infusion rates.
• To support fluid planning in clinically stable patients.

Results provided

• Hourly Fluid Rate
• Total 24-Hour Volume

For educational use only. Not a substitute for clinical assessment or professional medical judgment.