About the Hydration Progress Calculator
How much of your daily water goal you have reached so far, and how much is left.
Also known as: water tracker, hydration progress, water goal percentage, water-tracker.
How to use this calculator
- Enter water drunk today (ml), daily goal (ml).
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Open “Step-by-step” to see how the answer was worked out.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Goal reached = Water drunk today (ml) ÷ Daily goal (ml) × 100
Worked example
Using the values pre-filled in the calculator above:
- Water drunk today (ml) = 1,400
- Daily goal (ml) = 2,500
the calculator returns:
- Goal reached: 56%
- Remaining: 1,100 ml
- Glasses left (250 ml): 5
Working
Goal reached = 1,400 ÷ 2,500 × 100 = 56%