Coffee to Water Ratio Calculator

Find the Perfect Coffee to Water Ratio

Getting the right coffee to water ratio is one of the most important parts of brewing great coffee. Too much coffee can make your cup taste bitter, while too little can leave it weak and watery.

Use this coffee calculator to quickly find the ideal ratio for your brew method, whether you're using a drip coffee maker, pour over, French press, AeroPress, Chemex, Moka Pot, siphon, or cold brew setup.

Five Star Coffee

Perfect Coffee Ratio Calculator

Build a better cup with the right coffee-to-water ratio, grind size, brew time, and temperature.

Water 8 oz 236 g
Ratio 1:16 Coffee to water

Quick Kitchen Conversion

Tablespoons: 2.8

Teaspoons: 8.4

Approximate conversions based on ground coffee. A scale is still best for accuracy.

Recommended for This Brew

Balanced medium roast coffee

A smooth, versatile choice that works especially well for most brew methods.

Water Temperature

194–200°F

Grind Size

Medium-fine

Brew Time

4–5 min

Your Brew Guide

Use this calculator as a starting point, then fine-tune to match your brewer, grinder, roast, and taste preference.

How to Use This Coffee Calculator

Using this coffee to water ratio calculator is simple:

  1. Select your brew method
  2. Choose your batch size
  3. Adjust your preferred strength
  4. Select your roast level
  5. Use the results to brew your coffee

This tool automatically calculates the ideal coffee-to-water ratio so you can get consistent results every time.

Coffee Ratio FAQs

What is the best coffee to water ratio?

The most common ratio is between 1:15 and 1:18.

How much coffee should I use per cup?

For an 8 oz cup, use about 14–18 grams of coffee.

Is a coffee calculator accurate?

A coffee calculator gives you a consistent starting point, but you can adjust based on your taste preference.