Coffee to Water Ratio Calculator

Getting the coffee-water ratio right is the key to a great cup of coffee. But coffee measurement is a confusing topic, and “how much ground coffee per cup” doesn’t have a simple answer.

Grams to milliliters? Ounces to grams? How many scoops of coffee? What if I like it strong? Do I need a scale? We built this simple coffee calculator to help you figure out the best coffee-water ratio. 

Step 1: Select Your Brew Method:

choose from 8 popular brewing methods: Espresso,Pour-over, French Press, Autodrip, Moka Pot, Aeropress, Siphon, or Cold Brew. Each method has preset coffee-to-water ratios for optimal brewing.

Step 2: Choose Your Intensity Level:

Select your preferred flavor profile,The intensity automatically updates the recommended coffee-to-water ratio for your chosen brew method.

• Mild Light and clean taste (fast brew time)
• Balanced-Classic, well-rounded flavor (average brew time)
• Robust Strong and bold taste (slow brew time)

Step 3: Select Your Calculation Mode:

Decide what you want to calculate:

• By Coffee Weight- Enter how much coffee grounds you have, and the calculator shows you the required water amount
• By Water Weight- Enter how much water you’ll use, and the calculator shows you the required coffee grounds

Step 4: Enter Your Amount

Input your measurement in the text field. Choose your preferred unit: g (grams), ml (milliliters), cup, or oz (ounces). The calculator automatically converts between units while maintaining the correct ratio.

Step 5: View Your Results

The calculator displays in real-time:

• Your coffee-to-water ratio (e.g., 1:16)
• Coffee weight
• Water weight
• Your selected brew method
• Recommended water temperature
• based on roast level
• Recommended brewing time based on intensity

Step 6: Reference Temperature & Time Guides

Below the calculator, check the two guide modules:

• Water Temperature Guide – Shows optimal water temperatures for light, medium, and dark roasts (this is the temperature when water enters the coffee grounds, not kettle setting)
• Brewing Time Guide – Displays recommended brewing times: 4 minutes for mild, 5 minutes for balanced, and 6 minutes for robust flavors