Water Intake by Weight Calculator

Last updated: 2026-08-24

Water Intake by Weight Calculator — Calculate daily water intake based on weight.
Inputs
multiplier
min
factor
Result
Enter values and press Calculate

How to use it

  1. The calculador apply the formula automatically and muestra results

Common mistakes

  • ⚠️ Not verifying that weight are in correct units before Calculate
  • ⚠️ Redondear values intermediums before of the calculation final (pierde precision)
  • ⚠️ Apply results without Consider contexto individual or condition is special

Worked example

Calculate water for 75kg person.

The water base is 33ml/kg; the actividad add ~0.4ml/minute of ejercicio moderado.

Formula

Daily Water (L) = Body Weight (kg) × 0.033 × Activity Level × (1 + (Exercise Minutes / 60) × 0.5) × Climate Factor

Input guide

FieldTypical range
activityActividad: 0-120 min
weightPeso common: 45-120 kg