Espresso Ratio Calculator
Coffee dose and yield for a target espresso ratio.
Enter your values
ⓘ Live results
Results
- Target output yield
- 36 g
- Coffee dose
- 18 g
- Brew ratio
- 1:2
- Target brew time
- 27 sec
Quick answer
Espresso yield equals the coffee dose times the brew ratio (e.g. 18g dose at 1:2 ratio yields 36g of espresso).
yield = dose x ratio
How to use the Espresso Ratio Calculator
- 1Enter your coffee dose (the dry ground coffee weight in the portafilter).
- 2Choose your target brew ratio — 1:2 is the standard modern espresso ratio.
- 3Pull the shot to the calculated output weight within your target brew time for a balanced espresso.
Worked example
Using the values the calculator loads with:
Inputs
- Coffee dose (dry)18 g
- Brew ratio1:2 (classic double)
- Target brew time27 sec
Results
- Target output yield36 g
- Coffee dose18 g
- Brew ratio1:2
- Target brew time27 sec
Frequently asked questions
What's a typical brew time?
Most espresso shots target 25-30 seconds from the start of extraction to reaching the target yield.
Why does ratio matter?
A higher ratio (more water relative to coffee) produces a lighter, less intense shot; a lower ratio is stronger and more concentrated.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.