About the Coffee Ratio Calculator
Brew ratio is the weight of coffee to the weight of water, and it is the single biggest lever on strength. Most filter methods sit between 1:15 and 1:17. Ground coffee holds back about twice its weight in water, which is why your brewed yield is always less than the water you poured.
Also known as: coffee to water ratio, brew ratio calculator, pour over calculator, french press ratio, coffee grams calculator.
How to use this calculator
- Enter method, i know the and the other fields.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
coffee = water ÷ ratio · yield = water − (coffee × 2)
Worked example
Using the values pre-filled in the calculator above:
- Method: Pour over / V60 (1:16)
- I know the: Number of cups
- Cups = 2
- Cup size = 250 ml
the calculator returns:
- Coffee: 35.5 g
- Water: 568 g
- Brew ratio: 1 : 16
- Brewed coffee yield: 497 ml