How Much Water Should I Drink?
Quick answer
Weight, sweat and sun — your actual daily number and bottle math.
- Free, no sign-up, works on any device.
- Instant results with a clear explanation of each step.
Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.
How Much Water Should I Drink?
Weight, sweat and sun — your actual daily number and bottle math.
Step 1 of 2
You
lb
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