Water Intake Calculator
Estimate how much water you should drink each day.
Water Intake Calculator
Live result
Daily water
97
Approx cups
12.13
Liters
2.87
What it is
A common starting target for water intake is half your bodyweight in ounces — bump it up when you exercise or it's hot.
The formula
Daily water (oz) ≈ bodyweight (lb) × 0.5 + 12 oz per 30 min exercise
Why it matters
Understanding water intake calculator helps you make a better-informed decision before you commit money or time.
Worked examples
Try the example
Use the defaults above as a starting point — then adjust the inputs to match your situation.
Common pitfalls
- Double-check the units on every input — most errors come from mixing units.
- Round at the end, not in the middle of the formula.
Frequently asked questions
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