Fraction to Percent Calculator
Convert any fraction to a percentage instantly, including mixed numbers and repeating decimals, free and easy right in your browser.
Enter Values
How to use this calculator
- Enter the numerator and denominator.
- Read the percentage and decimal.
How it works
Divide the numerator by the denominator, then multiply by 100 for the percentage.
Worked example
3/4. = 75% (0.75).
Common mistakes
- Entering 0 as the denominator — division by zero is undefined.
- Reading the decimal as the percentage — multiply by 100 first.
Frequently asked questions
How do I convert a fraction to a percentage?
Divide the numerator by the denominator and multiply by 100: 3/4 = 0.75 × 100 = 75%.
How do I convert a percentage back to a fraction?
Put the percentage over 100 and simplify: 40% = 40/100 = 2/5.
How do I turn a percent back into a fraction?
Put the percent over 100 and simplify — 75% = 75/100 = 3/4.
Related tools
- Decimal to Fraction Converter
- Percentage Difference Calculator
- Percent Error Calculator
- Percentage Decrease Calculator
- Percentage Increase Calculator
- Reverse Percentage Calculator
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Cite this tool
Zerdly. (2026). Fraction to Percent Calculator. Retrieved from https://www.zerdly.com/tools/fraction-to-percent-calculator/
Tip: Enter any known values to calculate the remaining results.
Designed to run locally in your browser. Tool inputs are not intentionally stored by Zerdly unless stated otherwise.