Ratio to Percentage Calculator

Convert a ratio into a percentage by entering the ratio in the fields below.

Ratio

Ratio NumeratorRatio Denominator

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Percentage:

150%

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By

Joe Sexton

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Reviewed by

Pateakia Heath, PhD

Pateakia has worked in education for 15 years and has three degrees, including a PhD, Master's degree, and Bachelor's degree. She specializes in mathematics.

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Cite As:

Sexton, J. (n.d.). Ratio to Percentage Calculator. Inch Calculator. Retrieved June 14, 2025, from https://www.inchcalculator.com/ratio-percentage-calculator/

How to Convert a Ratio to a Percentage

Ratios are often expressed in the form m:n or m/n. To convert a ratio into the form of a percentage, simply divide m by n and then multiply the result by 100.

Steps to Convert

The conversion consists of a few simple steps:

1. Step 1: Convert the ratio into a fraction
2. Step 2: Divide the first number by the second number
3. Step 3: Multiply by 100 to convert to a percentage
4. Step 4: Add the percent symbol (%)

For example, If the ratio is 12:4, convert it to the form 12/4, which is an equation we can solve. After that, multiply the result by 100 to get the percentage.

12 ÷ 4 = 3
3 × 100 = 300%

Use our ratio calculator to solve or reduce a ratio.