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Coffee ratio calculator

Short answer

Pour-over runs at 1:16, which is 15 g of coffee to 240 g of water. Cold brew is 1:8 and cold brew concentrate 1:4, both with a coarse grind. Pick a method below to get grams, millilitres, grind size and brew time.

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Calculate your brew

Coffee

30 g

Water

480 ml

Grind

Medium-fine

Brew time

2:30 to 3:30

1:16 · 15 g of coffee to 240 g of water, water at 93°C. Bloom with 30 to 45 g of water for 30 to 45 seconds, included in the time. Under 2 minutes: grind finer. Over 4: grind coarser.

One cup here is 240 ml of water. Source: Pour over coffee setup for beginners.

Default amounts by method

Ratio is grams of water per gram of coffee. One cup here is 240 ml of water. Moka pot cups are pot cups of about 43.3 ml.

MethodRatio1 cup2 cups4 cups
Pour-over1:1615 g + 240 ml30 g + 480 ml60 g + 960 ml
French pressabout 1:1714.4 g + 240 ml28.8 g + 480 ml57.6 g + 960 ml
Drip coffee makerabout 1:1813.2 g + 240 ml26.4 g + 480 ml52.8 g + 960 ml
AeroPressabout 1:1318.5 g + 240 ml36.9 g + 480 ml73.8 g + 960 ml
Moka potFill the basketmakes 43.3 ml, fill basketmakes 86.7 ml, fill basketmakes 173.3 ml, fill basket
Cold brew, ready to drink1:830 g + 240 ml60 g + 480 ml120 g + 960 ml
Cold brew concentrate1:4 to 1:560 g + 240 ml120 g + 480 ml240 g + 960 ml

Grind size chart

Six levels, finest on the left, drawn at the same scale. Numbers match the table. Dials differ between grinders, so judge by look and feel. More in the grind size guide.

Grind size scale from extra fine to coarseSix panels of ground coffee particles at the same scale, from extra fine like powdered sugar to coarse like breadcrumbs. The table below lists which brew method uses each level.123456
#GrindLooks likeUsed for
1Extra finePowdered sugarTurkish coffee (cezve)
2FineTable saltEspresso
3Medium-fineBetween table salt and sandPour-over, AeroPress, Moka pot
4MediumSandDrip coffee maker
5Medium-coarseRough sea saltChemex
6CoarseBreadcrumbs or raw sugarFrench press, Cold brew, ready to drink, Cold brew concentrate

Moka pot sits between 2 and 3: the grind guide calls it fine and slightly coarser than espresso, the moka guide medium-fine, closer to table salt than flour. It is listed at 3 here.

Brew methods compared

Body and difficulty come from our own articles; where they say nothing, the cell says so.

MethodRatioGrindTimeBodyDifficultyRead more
Pour-over1:16Medium-fine2:30 to 3:30Clean and brightNeeds precisionPour over coffee setup for beginners
French pressabout 1:17Coarse4 min steepRich and full, with oils and some sedimentForgivingFrench press and pour over compared
Drip coffee makerabout 1:18Medium4 to 6 minNot rated in our articlesNot rated in our articlesCoffee grind size chart and brew method reference
AeroPressabout 1:13Medium-fine1 to 2 minNot rated in our articlesNot rated in our articlesCoffee grind size chart and brew method reference
Moka potFill the basketMedium-fine (fine sand)About 4 minBetween drip and espresso in strengthNeeds attention to heat and fillUsing a Moka pot at home
Cold brew, ready to drink1:8Coarse12 to 24 hoursSmooth, full-bodied, low acidityForgiving of timingCold brew coffee ratio
Cold brew concentrate1:4 to 1:5Coarse14 to 18 hoursThick, chocolate and caramel notesForgiving of timingCold brew concentrate ratio

Where the numbers come from

Pour-over, moka pot and both cold brews use the ratios, grinds and times in our articles. The French press ratio (30 g to 500 ml, grind and 4-minute steep also match our article), the drip ratio (the 55 g per litre brewing standard) and the AeroPress dose (14 to 20 g with about 200 to 230 ml of water) are not in our articles, so they come from published sources: French press, Coffee preparation and AeroPress. Treat every ratio as a starting point and adjust to taste.