Coffee Ratio Calculator
Calculate perfect coffee-to-water ratios for all brewing methods and achieve consistently great coffee
Calculate Coffee Ratios
Each cup is 250ml (8.5 fl oz)
How to display coffee measurements
Your Coffee Recipe
Brewing Instructions
Coffee Strength Analysis
Example: French Press Coffee
Making 2 Cups (500ml)
Method: French Press (1:12 ratio)
Target Volume: 500ml coffee
Total Parts: 1 + 12 = 13 parts
Coffee: (500ml ÷ 13) × 1 = 38.5g
Water: (500ml ÷ 13) × 12 = 461.5ml
Brewing Steps
1. Heat water to 93-96°C
2. Use coarse ground coffee (38.5g)
3. Add coffee to French press
4. Pour hot water (461.5ml) and stir
5. Steep for 4 minutes
6. Press down plunger slowly
Brewing Methods Quick Reference
Coffee Measurements
Perfect Coffee Tips
Use freshly ground coffee for best flavor
Water temperature: 90-96°C for optimal extraction
Grind coffee just before brewing
Use filtered water for cleaner taste
Weigh ingredients for consistency
Understanding Coffee Ratios
What Are Coffee Ratios?
Coffee ratios express the relationship between coffee grounds and water used in brewing. They're written as coffee:water (e.g., 1:15 means 1g coffee per 15ml water). Different brewing methods require different ratios to achieve optimal flavor extraction.
Why Ratios Matter
- •Ensures consistent flavor every time
- •Prevents over or under-extraction
- •Optimizes coffee strength and taste
- •Reduces waste and improves efficiency
Calculation Method
Our calculator uses the standard formula for determining coffee and water amounts:
Total parts = Coffee parts + Water parts
Coffee amount = (Volume ÷ Total parts) × Coffee parts
Water amount = (Volume ÷ Total parts) × Water parts
Note: We assume 1ml = 1g for ground coffee. Some methods like espresso account for water absorption during brewing.
Brewing Methods Guide
Ristretto
Ratio: 1:1.5
Time: 15-20 seconds
Grind: Fine
The smallest coffee, also called caffè corto
Espresso
Ratio: 1:2
Time: 25-30 seconds
Grind: Fine
Classic espresso shot with perfect crema
Lungo
Ratio: 1:3
Time: 25 seconds
Grind: Fine
Extended espresso with more water
Cold Brew
Ratio: 9:40
Time: 12-24 hours
Grind: Coarse
Smooth, less acidic coffee brewed with cold water
Moka Pot
Ratio: 1:10
Time: 4-5 minutes
Grind: Medium-fine
Coffee from the stovetop with rich flavor
AeroPress
Ratio: 1:11
Time: 1-2 minutes
Grind: Medium-fine
Making one cup at a time with pressure