Water Intake Calculator
Estimate how much water you should drink per day based on your weight.
How it works
Fill in the 2 fields above and Water Intake Calculator calculates the result instantly, recalculating as you change any value. The math runs locally in your browser — nothing is sent to a server.
Examples
- Weight 70 kg → Daily water: 2.31 L
Frequently asked questions
How do I use the Water Intake Calculator?
Enter your values in the 2 input fields and the result is calculated automatically as you type. Change any value to see the numbers update instantly.
Is my data private?
Yes. The Water Intake Calculator runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.
Is the Water Intake Calculator free?
Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on calculators and the rest of the platform, you can use it as often as you like.
Popular in Calculators
Loan Calculator
Estimate monthly payments, total interest and total cost of a loan.
Age Calculator
Calculate exact age in years, months and days from a birth date.
Tip Calculator
Split the bill and calculate the tip per person in seconds.
Percentage Change Calculator
Calculate the percentage increase or decrease between two values.