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Water Intake Calculator

Health
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Estimates recommended daily water consumption based on factors like weight and activity level.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Body Weight, Activity Level, and Exercise Duration (minutes) in the units shown.

Step 2

Read Recommended Daily Water Intake and Recommended Daily Water Intake (Liters) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Sedentary, 150 lbs

Body Weight: 150 pounds; Activity Level: Sedentary (little to no exercise); Exercise Duration (minutes): 0 minutes

Recommended Daily Water Intake: 90 fluid ounces; Recommended Daily Water Intake (Liters): 2.661615 liters

Moderate Activity, 150 lbs, 30 min

Body Weight: 150 pounds; Activity Level: Moderate (30-60 minutes of exercise); Exercise Duration (minutes): 30 minutes

Recommended Daily Water Intake: 117 fluid ounces; Recommended Daily Water Intake (Liters): 3.4600995 liters

Active, 180 lbs, 60 min

Body Weight: 180 pounds; Activity Level: Active (60+ minutes of exercise); Exercise Duration (minutes): 60 minutes

Recommended Daily Water Intake: 168 fluid ounces; Recommended Daily Water Intake (Liters): 4.968348 liters

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.