Water Intake Calculator

Calculate how much water you should drink daily based on your weight, activity level, and climate.

Enter your weight and activity level, then click Calculate
kg
Recommended Daily Water Intake
Total Water
In Liters
In Cups (250ml)
In Glasses (8oz)

How Much Water Do You Need?

This calculator uses a common general guideline of about 33ml per kilogram of body weight as a baseline, then adds extra for physical activity and hot/humid climates. Individual needs can vary based on health conditions, diet, and other factors.

Frequently Asked Questions

This calculator uses a common general guideline of about 33ml per kilogram of body weight as a baseline, then adds extra for physical activity and hot or humid climates.

It calculates your recommended daily water intake based on your weight, activity level, and climate.

Yes, the calculator adds extra water intake for hot and humid climates on top of the baseline guideline.

Yes, the calculator adds extra for physical activity on top of the 33ml per kilogram baseline.

No, individual needs can vary based on health conditions, diet, and other factors, so this should be treated as a general guideline.

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