Outils de l'univers
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Fraction ↔ Decimal ↔ Percentage

Convert a fraction (like 1/4) into a decimal and a percentage, or the other way around, in one click. All calculations are done locally in your browser.

Fill exactly one of the fields below:

  • Fraction (e.g. 1/4, 3/8)
  • Decimal (e.g. 0.25)
  • Percentage (e.g. 25 for 25%)

The tool will compute all three representations for you.

Format: a/b (e.g. 1/2, 3/5, 7/10).
Use a dot for decimals (0.75, 0.333...).
Enter 25 for 25% (not 0.25).

This fraction to decimal and percentage converter helps you transform values like 1/2, 3/4 or 7/10 into their exact decimal form and the corresponding percentage. You can also start from a decimal (like 0.125) or a percentage (like 12.5) and get a simplified fraction.

It’s useful for math homework, cooking ratios, measurements, discounts, finance calculations and quick checks. Everything runs locally in your browser: no accounts, no API calls, and no data sent.

Fractions are simplified when possible (e.g. 2/4 → 1/2). Decimals and percentages are rounded for readability.