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Daily Water Intake Calculator

Calculate how many liters of water you need to drink each day for optimal hydration, energy, and wellness. Tailored to your body weight, physical exercise, and climate.

Body Profile & Daily Routine

kg
Your Daily Hydration Target

2.95 L

2.950 ml por dia recomendados para o seu peso

Copo 250ml

12

Copos ao dia

Garrafa 500ml

~5.9

Garrafas ao dia

Suggested Daily Hydration Routine

Upon waking

1 glass (250 ml) to jumpstart metabolism and rehydrate organs.

Mid-morning

2 glasses (500 ml) spread across work or study hours.

Afternoon

3 to 4 glasses (~800 ml) to maintain focus and stave off fatigue.

Evening

1 to 2 glasses (~350 ml), avoiding excess right before bed.

Nutritional Benchmark

The World Health Organization (WHO) baseline guidelines advise roughly 35 ml of water per kilogram of body weight for healthy adults, scaled up during hot weather or demanding exercise sessions.

How it works

1

Enter your body weight in kilograms.

2

Select your daily workout/activity level (sedentary, moderate, or intense).

3

Adjust ambient climate (mild or hot/summer).

4

View your daily hydration target in liters, 250 ml glasses, and a suggested drinking schedule.

Frequently asked questions

Is it really free?

Yes. The site is supported by ads, so you never pay or need to create an account.

How is daily water intake calculated?

The World Health Organization (WHO) baseline guidelines advise roughly 35 ml of water per kilogram of body weight for healthy adults, scaled up by 500 ml to 1,000 ml for workouts.

Does it work on mobile?

Yes. The page adapts to your screen and does not require installing any app.