coffee to water ratio calculator

Coffee Ratio Calculator

Find a repeatable coffee dose for pour-over, filter or another weight-based brew.

Calculate now

Enter your values, then calculate.

Inputs stay in this browser. We record only an anonymous “tool used” event, never your values.

How it works

Coffee dose = water weight ÷ ratio number. A 1:16 recipe uses one gram of coffee for every sixteen grams of water.

Three practical tips

  • Weigh both coffee and water for repeatability.
  • Adjust grind and brew time alongside ratio.
  • Taste first; the preferred ratio is personal.

What is a good starting coffee ratio?

Many filter recipes start near 1:15 to 1:17. Treat that as an experiment, not a rule.