Coffee Ratio Calculator
Fill in the values and the answer updates as you type.
How the Coffee Ratio Calculator works
Coffee = water ÷ ratio, treating 1 ml of water as 1 g. A 1:15 to 1:17 ratio is common. One level tablespoon holds about 5 g of ground coffee.
Inputs and results
The Coffee Ratio Calculator takes 2 inputs and gives 2 results.
What you enter
- Water (ml) — starts at 500.
- Water per 1 g coffee (g) — starts at 16.
What you get
- Coffee grounds (g)
- Tablespoons (approx.)
Example: Coffee Ratio Calculator with the starting values
With water 500 ml and water per 1 g coffee 16 g, the calculator returns:
| Coffee grounds (g) | 31.3 |
|---|---|
| Tablespoons (approx.) | 6.3 |
Change any value above and the results update straight away.
Coffee Ratio Calculator FAQ
How do I use the Coffee Ratio Calculator?
Enter water and water per 1 g coffee in the fields, then read coffee grounds (g) and tablespoons (approx.) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Coffee Ratio Calculator calculate?
Coffee grounds needed for the water you brew with. It returns coffee grounds (g) and tablespoons (approx.) from the 2 values you provide.
What values does the Coffee Ratio Calculator start with?
It opens with water 500 ml and water per 1 g coffee 16 g so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Coffee Ratio Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Coffee Ratio Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.