## About This Tool

The online Ratio to Percentage Calculator is used to convert ratio to percentage. Please note that in this calculator ratio a : b means a out of b.

## Example

Example: Convert the ratio 2 : 4 into percentage:

- 2 : 4 can be written as 2 / 4 = 0.5;
- Multiplied 0.5 by 100, 0.5 × 100 = 50, so the percentage of ratio 2 : 4 is 50%.