Coffee Ratio Calculator
Find the right coffee and water amounts for your next recipe. Change an input, and the result updates instantly.
Recipe inputs
Set coffee, water, and ratio
The lightly shaded field is calculated automatically. Choose Coffee, Water, or Ratio to change the result.
How to read the result
A ratio is a starting point, not a rule for taste.
A 1:16 ratio means every gram of coffee uses 16 grams of water. For example, 20 grams of coffee uses 320 grams of water.
A lower ratio number generally makes a stronger brew, while a higher number makes it lighter. Grind size, temperature, time, pouring technique, and the coffee itself still shape the final cup.
Stronger
A starting point for more body and concentration.
Balanced
A popular starting point for many filter brews.
Lighter
Uses more water for the same coffee dose.
Want to understand brew ratios?
Learn why grams are more consistent, see starting ratios by method, and adjust brew strength.
Read the brew ratio guideExplore BeanHub Coffee Tools
Recipe Builder, Brew Timer, and Troubleshooter will support the next steps in your brewing journey.