Water Intake Calculator
Estimate how much water you should drink daily based on weight and activity — free and instant.
No upload. No signup. No watermark. Your file never leaves your device.
Open Water Intake Calculator →
🔒 Runs in your browser
⚡ Instant conversion
✓ No signup
✓ Free, unlimited use
How it works
1
Open the Water Intake Calculator.
2
Enter your weight and activity level.
3
See your recommended daily water intake.
Open the PDF to Word tool and select or drag in your PDF file.
2
Toolnova reads and converts the file locally in your browser — nothing is sent to a server.
3
Download your editable .docx file, ready to open in Word, Google Docs, or any compatible editor.
Why calculate daily water intake?
"Drink more water" is common advice, but a personalized target based on your weight and activity level is far more useful than a generic number.
Frequently asked questions
Is this water intake calculator free?
Yes, completely free with no signup.
Is this medical advice?
No, it's a general estimate only — consult a professional for personalized hydration guidance.
Does climate or exercise change the recommendation?
Higher activity levels increase your estimated daily water needs in this calculator.