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Coffee Brew Ratio Calculator

Enter your water and ratio to get the exact grams of coffee for a perfectly balanced cup — for any brew method.

#brew ratio #pour over #golden ratio

Water (ml)

Ratio — 1 : 16

Strong 1:10Light 1:20

Use this much coffee

31.3 g

≈ 6.3 tbsp · 3.1 scoops · Balanced

500

ml water

1:16

brew ratio

31.3

g coffee

Weigh coffee and water with a scale for the most consistent cup. 1 g of water ≈ 1 ml.

Other versions

☕Pour Over Ratio 🫖French Press Ratio 🥤AeroPress Ratio

How to use the brew ratio calculator

The brew ratio is the weight of coffee versus the weight of water. A ratio of 1:16 (one gram of coffee per 16 grams of water) is the balanced golden-ratio starting point for pour over and drip.

Stronger cup: move toward 1:14
Lighter cup: move toward 1:18
French press: try 1:14; espresso is a different world at roughly 1:2

Weigh your coffee and water with a scale — it's the single cheapest upgrade to your brewing.

Why ratio matters more than your machine

Get the ratio right and an ordinary brewer makes great coffee; get it wrong and the best gear can't save the cup. Read the full coffee-to-water ratio guide for the method-by-method chart.

Frequently asked questions

What is the best coffee-to-water ratio?

A 1:16 ratio — one gram of coffee for every 16 grams (ml) of water — is the balanced golden-ratio starting point. Use 1:15 for a stronger cup and 1:18 for a lighter one.

How much coffee for 500 ml of water?

At a 1:16 ratio, 500 ml of water needs about 31 grams of coffee. Adjust between 28 g (1:18, lighter) and 33 g (1:15, stronger) to taste.

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