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Welcome to the Coffee Ratio Calculator!

Discover the art of coffee measurements and unique brewing methods with our easy-to-use tool. Learn how to calculate coffee-to-water ratios, find out how much coffee per cup you really need, and explore various brewing techniques.

Using the Calculator

  1. Choose Your Desired Coffee Ratio: Select the coffee-to-water ratio that suits your taste preferences. For example, we’ve chosen 9:40 for a unique twist.
  2. Decide on Final Volume: Determine the volume of coffee you want to make. In our example, we’ve chosen 250mL (8.5 US fl oz).
  3. Let’s Calculate! Use the following equations:
    • Coffee Volume = (Total Volume/Total Parts) × Coffee Parts
    • Water Volume = (Total Volume/Total Parts) × Water Parts
    Note: We assume 1 mL = 1 g.For our 9:40 ratio:
    • Coffee Volume = (250 mL/49) × 9 = 45.9 mL (45.9 g)
    • Water Volume = (250 mL/49) × 40 = 204.1 mL
    Result: You need 45.9 g of coffee and 204.1 mL of water.Tip: This calculation doesn’t consider water loss during the process, but our coffee water calculator does.

Other Coffee Tools

Explore our other caffeine-filled tools, including the Cold Brew Ratio Calculator and Coffee Kick Calculator. Learn to make cold brew concentrate and assess alertness levels based on sleep and caffeine intake.

French Press Ratio

Discover the typical French press coffee-to-water ratio (1:12). Calculate water needed for a given amount of coffee using: Amount of Water (mL) = Amount of Coffee (g) × 12

Espresso Ratio

Learn the unique espresso ratio (1:2) and the adjusted 1:3.6 ratio to account for water losses. Amount of Water (mL) = Amount of Coffee (g) × 3.6

Alternative Coffee Chart

Explore various ratios for different coffee types, including Ristretto, Lungo, Cold Brew, Moka Pot, Aeropress, French Press, V60, Sinphon, and Chemex.

FAQ

How to Calculate Coffee Beans to Water Ratio? Make assumptions: 1 g = 1 mL, 1 coffee bean weighs 0.13g.

For a 1:6 ratio, you’ll need 1 portion of coffee and 6 portions of water.

For every 1 g of coffee, use 6 mL of water or ~8 coffee beans.

Overall, you’ll need around 8 coffee beans for every 6 mL of water.