Ratio Calculator
Simplify a ratio and see it as a decimal, as percentage shares, and scaled to 1.
Your result will appear here as soon as you add some input.
How to use it
- 1Enter your values in the fields above.
- 2The answer and the working appear immediately below.
- 3Check the working to see the formula with your numbers substituted.
About the Ratio Calculator
A ratio is simplified by dividing both parts by their greatest common divisor, the same operation that reduces a fraction.
The percentage shares treat the two numbers as parts of a whole, which is how a ratio is usually reported in a summary - 16:9 is 64% to 36%.
Questions people ask
Is your figures uploaded to a server?
No. This tool runs entirely in your browser using standard web APIs, so your figures never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.
Is it free, and do I need an account?
Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.