Coffee Brew Calculator
Use this calculator to find the perfect coffee-to-water ratio for your brewing method. Achieve consistent, delicious coffee every time with precise measurements.
Your Brew Recipe
Brewing Guide
Select a brewing method to see specific guidelines and tips for that method.
Pour Over Method
Pour over brewing produces a clean, bright cup with excellent clarity of flavor.
- Grind Size: Medium-fine (similar to sea salt)
- Water Temperature: 195-205°F (90-96°C)
- Brew Time: 2:30-3:30 minutes
Quick Tip: Always bloom your coffee by adding twice the coffee weight in water and waiting 30-45 seconds before continuing.
French Press Method
French press brewing creates a full-bodied cup with rich mouthfeel.
- Grind Size: Coarse (similar to sea salt)
- Water Temperature: 195-205°F (90-96°C)
- Brew Time: 4-5 minutes
Quick Tip: Break the crust that forms on top after 4 minutes, scoop off the foam, then plunge slowly.
AeroPress Method
AeroPress creates a smooth, rich cup with lower acidity.
- Grind Size: Medium-fine to fine
- Water Temperature: 175-185°F (80-85°C)
- Brew Time: 1:30-2:00 minutes
Quick Tip: Try both the standard and inverted methods to see which you prefer.
Espresso Method
Espresso produces a concentrated, intense shot with crema on top.
- Grind Size: Fine (like powdered sugar)
- Water Temperature: 195-200°F (90-93°C)
- Brew Time: 25-30 seconds
Quick Tip: Aim for a 1:2 brew ratio (e.g., 18g coffee to 36g espresso) for a balanced shot.
Moka Pot Method
Moka pot brewing creates a strong, espresso-like coffee.
- Grind Size: Medium-fine
- Water Temperature: Start with hot water
- Brew Time: 3-5 minutes on low heat
Quick Tip: Remove from heat when you hear a gurgling sound to prevent bitter flavors.
Cold Brew Method
Cold brew creates a smooth, low-acid concentrate that can be diluted.
- Grind Size: Coarse
- Water Temperature: Cold or room temperature
- Brew Time: 12-24 hours
Quick Tip: Dilute the concentrate with water, milk, or ice at a 1:1 ratio when serving.
Recommended Ratio Chart
| Brewing Method | Ratio Range | Strength |
|---|---|---|
| Espresso | 1:2 – 1:2.5 | Very Strong |
| Moka Pot | 1:7 | Strong |
| AeroPress | 1:12 – 1:14 | Medium-Strong |
| French Press | 1:12 – 1:15 | Medium |
| Pour Over | 1:15 – 1:17 | Medium |
| Cold Brew | 1:5 – 1:8 | Concentrate |
Coffee Brew Calculator Guide
What is the Brew Calculator?
The Brew Calculator is an interactive tool designed to help you achieve precision in your coffee brewing by calculating the exact measurements needed for your perfect cup. It eliminates guesswork and helps you maintain consistency across different brewing methods.
How to Use the Calculator
Our calculator helps you determine three essential variables:
- Coffee amount (grams)
- Water amount (milliliters/grams)
- Coffee-to-water ratio
Input Options:
- Fixed Coffee Amount:
- Enter your coffee amount (grams)
- Select your desired ratio
- The calculator will determine the water amount
- Fixed Water Amount:
- Enter your water amount (ml)
- Select your desired ratio
- The calculator will determine the coffee amount
- Custom Ratio:
- Enter either coffee or water amount
- Enter your preferred custom ratio
- The calculator will determine the corresponding value
Recommended Ratios
| Brewing Method | Ratio Range | Notes |
|---|---|---|
| Espresso | 1:2 – 1:2.5 | Concentrated, short extraction |
| Moka Pot | 1:7 | Strong, espresso-like character |
| AeroPress | 1:12 – 1:14 | Versatile, medium strength |
| Pour-Over | 1:15 – 1:17 | Balanced clarity and body |
| French Press | 1:12 – 1:15 | Full-bodied, rich flavor |
| Cold Brew | 1:5 – 1:8 | Concentrate (dilute when serving) |
Additional Features
- Grind Size Recommendations: Suggested grind settings based on your brewing method
- Brew Time Guidelines: Optimal extraction times for your chosen method
- Scale Functionality: Ability to scale recipes up or down for multiple servings
- Save Favorites: Store your perfect recipes for future reference
Interpreting Results
The calculator provides:
- Precise measurements for both coffee and water
- Expected yield (accounting for absorption by coffee grounds)
- Strength indicator (mild, medium, strong)
- Extraction time recommendations
Advanced Usage
- Temperature Recommendations: Optimal brewing temperatures for different roast levels
- Notes Section: Record your adjustments and taste observations
- Extraction Troubleshooting: Suggestions based on taste feedback
- Unit Conversion: Switch between metric and imperial measurements
Our Brew Calculator helps you achieve consistency in your coffee preparation, allowing you to replicate great results and make precise adjustments based on personal preference.