Health Calculators

Water Intake Calculator

Estimate daily water intake needs based on weight. The estimate updates in your browser as you type.

Daily water intake 2.31 L

What this tool is for

Water Intake Calculator supports wellness estimation in health calculators by showing how apply the formula shown on this page to the entered values. The page keeps the inputs, formula, and example together so the calculation can be checked before the number is reused.

When to use it

Use it when weight are already known and you need a quick estimate before comparing options, checking a worksheet, or copying the result into another workflow.

Inputs

  • Weight is one of the direct inputs used to calculate water intake. Use kg for this field.

Formula

water = weight x 0.033 liters

Example

70 kg person needs about 2.31 liters daily.

What the result means

The result labeled "Daily water intake" is the direct output of water = weight x 0.033 liters. In the worked example, 70 kg person needs about 2.31 liters daily.

Before you rely on the result

This is a general wellness estimate, not medical advice, diagnosis, or a treatment recommendation.

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Frequently asked questions

What does Water Intake Calculator calculate?

Water Intake Calculator uses water = weight x 0.033 liters to calculate daily water intake from weight.

Can I use this result as a final decision?

Water Intake Calculator is meant for fast planning math. Confirm taxes, contracts, school rules, medical guidance, building codes, or financial advice with the right source when the result affects a real decision.