Percentage calculator

Ratio to Percentage Calculator

A ratio compares parts of a whole. To express each part as a percentage, compare it with the sum of all parts.

Part 1

20%

Part 2

30%

Part 3

50%

Formula

(Individual Part / Sum of All Parts) × 100

Formula

Part Percentage = (Part ÷ Sum of All Parts) × 100

How to calculate it

  1. Add all ratio parts to find the total.
  2. Divide each individual part by the total.
  3. Multiply each result by 100 to obtain its percentage share.

Convert the ratio 2:3:5

Values: Total parts = 2 + 3 + 5 = 10.

Result: 20%, 30% and 50%, respectively.

Frequently asked questions

Do ratio percentages add up to 100%?

For positive ratio parts, their exact percentages add up to 100%. Displayed rounded values may differ slightly.

Can a ratio have more than two parts?

Yes. The same method works for any number of parts, provided their total is not zero.

Does 2:3 mean 2% and 3%?

No. It means two parts compared with three parts. Their percentage shares are 40% and 60%.