METHODHow the result is produced
Practical example
72 kg · 45 min · 30 °C
Method
The tool applies published reference equations to the body and activity data entered.
Assumptions and limits
Conditions, pregnancy, medication and body composition are not fully represented.
Sources
EFSA
Last reviewed: August 2026Water Intake Calculator
Estimate total daily water intake using sex, exercise and hot weather. The reference value includes water from both drinks and food.
Enter the required values or content, adjust the options and then review the detailed result.
No. The result is an estimate only and is not medical advice or a diagnosis.
FAQFrequently asked questions
What can I do with Water Intake Calculator?
Estimate total daily water intake using sex, exercise and hot weather. The reference value includes water from both drinks and food.
How do I use Water Intake Calculator?
Enter the required values or content, adjust the options and then review the detailed result.
Are my data uploaded?
No. Inputs and files for this tool are processed locally in your browser.
Does the result replace professional advice?
No. The result is an estimate only and is not medical advice or a diagnosis.
Is this tool free?
Yes. Every feature is free and requires no registration.
Does it work on mobile?
Yes. The interface is optimized for iPhone, Android, tablets and desktop computers.