Calculator

Coffee Ratio Calculator

Turn a dose and a target ratio into water, temperature and grind

grams of ground coffee

water ÷ coffee. 15–17 for pour over, 2 for espresso

multiplies the dose and the water

Result

—

Brew ratio—
Water temperature—
Grind setting—
Expected brew time—
LowHigh
Enter your numbers to see the formula used.

What this returns

Enter how much coffee you have and the ratio you want, and this returns the water weight, a starting temperature for the roast level, a grind range and an expected brew time — with the formula it used shown underneath, so you can check it.

Outputs

  • Water needed
  • Brew ratio
  • Water temperature
  • Grind setting
  • Expected brew time

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