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Brew Ratio
Dose and water planner
StrengthPreset ratio
All Coffee Corner tools
Dose Planner
Brew Ratio Calculator
Calculate coffee dose, brew water, and espresso yield for pour-over, drip, French press, AeroPress, moka pot, cold brew, and espresso recipes.
Dose in gramsWater or yieldDial-in recipe
Brew Lab
Brew ratio calculator
Plan dose and water/yield for common brew methods. Ratios are starting points, because grind, roast, and taste still matter.
Ratio Guide
A coffee ratio calculator for repeatable brewing
A good coffee recipe starts with a simple relationship: coffee dose multiplied by ratio equals brew water or espresso yield. This calculator makes that relationship fast, readable, and easy to adjust for different brew methods.
Coffee-to-water ratio math
Enter a coffee dose in grams and choose a ratio to calculate brew water or espresso yield without mental arithmetic.
Common brew methods
Start from sensible defaults for pour-over, drip, French press, AeroPress, moka pot, cold brew, cold brew concentrate, and espresso.
Dial-in friendly
Use the result as a starting recipe, then adjust grind, contact time, temperature, and ratio until the cup tastes balanced.
Works for small or large batches
Scale from a single mug to a larger batch while keeping the same coffee strength target and repeatable recipe notes.
How to use this tool
- Pick the brew method closest to your recipe, or type a custom ratio.
- Enter the dry coffee dose in grams. A scale gives the most repeatable result.
- Use the water or yield number as the target for the brewer, server, or espresso cup.
- Taste the cup and adjust the next brew: lower ratios taste stronger, higher ratios taste lighter.
Quick Answers
Frequently asked questions
What is a good pour-over coffee ratio?
A common starting point for pour-over or drip coffee is around 1:16, meaning 1 gram of coffee to 16 grams of water.
What is a good French press ratio?
A practical French press starting point is around 1:15. Some people prefer stronger full-bodied cups closer to 1:12 or 1:14.
What ratio should I use for cold brew?
Ready-to-drink cold brew often starts around 1:8. Cold brew concentrate is stronger and can start around 1:5 before dilution.
Does espresso use water ratio or yield ratio?
Espresso recipes usually track beverage yield. A 1:2 espresso means 18 g of ground coffee producing about 36 g of espresso.