The Grind CalcFree online tool
Cold brew coffee ratio calculator
Cold brew concentrate is typically brewed at 1:8 (125 g coffee per 1 L water). Dilute with equal parts water for a 1:16 drinking strength.
Cold brew
Coffee to water ratio
Coffee
20 g
4 tbsp
Water
160 ml
5.4 fl oz
Cups
0.68
US cups
Ratio
1:8
by weight
How this ratio works
Coffee ratios are expressed by weight: 1 part ground coffee to X parts water. A 1:16 ratio means 1 gram of coffee for every 16 grams (milliliters) of water. This calculator converts between grams, tablespoons, cups, and fluid ounces so you can brew with whatever you have on hand.
Tips for cold brew
- Steep 12–18 hours in the fridge using coarse ground coffee.
- Filter through paper or a fine mesh for a cleaner cup.
- Concentrate keeps refrigerated for about a week.
Frequently asked questions
What ratio for cold brew concentrate?+
Cold brew concentrate is usually brewed at 1:8 (125 g coffee per 1 liter water). Dilute with equal parts water or milk before drinking for a strength similar to hot coffee.
Cold brew coffee ratio grams?+
For 1 liter of concentrate at 1:8, use 125 g coffee. For a smaller batch of 500 ml water, use about 63 g coffee. Steep 12–18 hours refrigerated.
How much coffee for cold brew gallon?+
One US gallon is about 3,785 ml. At 1:8 concentrate ratio, use roughly 473 g coffee. Scale down in the calculator if you brew smaller batches.
Cold brew vs hot coffee ratio?+
Cold brew uses a stronger concentrate ratio (1:8) because it is diluted before serving. Ready-to-drink strength after dilution is often near 1:16.