Water Intake by Body Weight Calculator
Get a general daily water intake guide from body weight and activity level.
Compare Your Options And Get Clear Answers
Get a general daily water intake guide from body weight and activity level.
Water Intake by Body Weight Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Results update as you change the inputs.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Water Quick Guide
Typical values for reference.
| Weight kg | ml/kg | Exercise min | Litres/day |
|---|---|---|---|
| 50 | 33 | 30 | 2.00 litres |
| 70 | 33 | 30 | 2.66 litres |
| 90 | 33 | 30 | 3.32 litres |
| 110 | 33 | 60 | 4.33 litres |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Water Intake by Calculator FAQ
Answers to common questions about this calculator.
A common guide is 30 to 35 ml per kg, including water from food and drinks.
No. People with medical conditions should follow their doctor.
Intake = body weight x ml per kg + exercise allowance.
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.