Ratio to Percentage Calculator
How to Convert a Ratio to a Percentage
For a ratio A:B, the percentage of A is A divided by (A + B), multiplied by 100.
Percentage of A = A / (A + B) × 100
For example, for the ratio 3:7:
3 / (3 + 7) × 100 = 30%
Example
Ratio 1:4 — what percentage is the first part?
1 / (1 + 4) × 100 = 20%