Everyday

Water Intake Calculator

Rough daily water liters from body weight (35 ml/kg).

Free to use — no sign-up or login.

Liters / day

This free Water Intake Calculator covers Rough daily water liters from body weight (35 ml/kg).

A simple mass-based planning estimate (not medical advice). Related everyday tools sit beside How it works, with no account required.

Using the Water Intake Calculator

Rough daily water liters from body weight (35 ml/kg). Typical inputs are Weight (kg). How it works beside the form states the identity the Water Intake Calculator applies.

FAQ

How do I use the Water Intake Calculator?

Open the Water Intake Calculator, fill Weight (kg), and read the result. Enter Weight (kg) for the Water Intake Calculator; retain the units printed in each label. The calculator reports Liters / day: A simple mass-based planning estimate (not medical advice). Actual needs vary with climate, activity, diet, and health conditions.

What formula does the Water Intake Calculator use?

The Water Intake Calculator uses the identity in How it works. In words: Enter Weight (kg) for the Water Intake Calculator; retain the units printed in each label. The calculator reports Liters / day: A simple mass-based planning estimate (not medical advice). Actual needs vary with climate, activity, diet, and health conditions.