Coffee ratio calculator
Enter the coffee you have or the drink size you want, choose a method and strength, and get a clear starting recipe with the coffee dose and the water, espresso, or milk you need.
Calculate coffee ratios
320 mlWater
- Coffee
- 20 g
- Water
- 320 ml
Ratio used: 1:16
Use a medium-fine grind and pour in slow circles for an even extraction.
Your amounts are calculated in the browser and never stored or sent anywhere.
These ratios are common starting points, not universal rules. Adjust them to your taste, beans, and grinder.
How the ratio works
A brew ratio like 1:16 means one part coffee to sixteen parts water. The calculator turns that ratio into the amounts you need, depending on what you already know:
- I have coffee: multiply your coffee grams by the ratio to get the liquid you need.
- I want a drink size: divide your target volume by the ratio to get the coffee you need.
For brewed and traditional coffee the liquid is water. For espresso the liquid is the espresso yield. For milk drinks, the espresso amount is calculated first and the milk is added from a fixed drink profile.
Methods covered
Choose from brewed methods such as pour-over, French press, drip, AeroPress, and cold brew; espresso drinks including ristretto and lungo; milk drinks; and Turkish or Arabic coffee. The calculator changes the liquid it reports to match the selected group: water for brewed and traditional coffee, espresso yield for espresso, and espresso plus milk for milk drinks.
Method and sources
The calculator converts the selected ratio into a starting amount; it does not measure extraction or certify a recipe. Its method groups and fixed strength profiles are Yusr editorial starting presets, including the espresso, milk, cold-brew, Turkish, and Arabic coffee profiles. They are not all Specialty Coffee Association standards or industry-wide rules.
The Specialty Coffee Association’s published standards provide wider technical context for coffee equipment and brewing performance. They do not validate this calculator’s complete preset table. Beans, roast, grind, equipment, water temperature, regional practice, and taste can all change the result, so adjust from the first cup.
Example
20 g of coffee with a medium V60 ratio of 1:16 gives 320 ml of water. Work the other way, and 300 ml of French press at 1:15 needs 20 g of coffee. A 250 ml latte at a 1:2 espresso yield with a 1:4 milk ratio breaks down to about 25 g of coffee, 50 ml of espresso, and 200 ml of milk.
Privacy
Everything is calculated in your browser. Your amounts are never stored or sent to a server, and the tool makes no network requests.
Limitations
The ratios are common starting points, not universal rules. Coffee strength depends on your beans, roast, grind, water temperature, and taste. Milk drink sizes vary a lot between cafés, and Arabic and Turkish coffee have strong regional traditions — so treat the result as a first recipe to adjust, not a fixed standard.
Quick tips
Start with the medium strength for a balanced cup. If it tastes weak, move one step toward strong; if it tastes too intense, move toward light. For cold brew concentrate, remember to dilute it with water or milk before drinking.
Try the tea calculator
For a tea starting recipe with water, steeping time, and temperature guidance, use the tea ratio calculator.