Decimal to Fraction Calculator

Convert a decimal number to a simplified fraction or a fraction to a decimal number.

✅ Free 📅 Updated 5.11.2026 🧮 Mathematics

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About this calculator

What is the Decimal to Fraction Calculator?

The Decimal to Fraction Calculator converts a decimal number to a simplified fraction and a fraction to a decimal number. The calculator also displays the mixed number and percentage value.

The calculator is free, works in the browser without registration, and shows the result as soon as you change the values. The calculation is done on your own device, and the information you enter is not sent anywhere.

Formula and Calculation Principle

A decimal number is converted to a fraction by multiplying and dividing by a power of ten (0.375 = 375/1000) and simplifying by the greatest common divisor (375/1000 = 3/8).

Practical Example

0.375 = 375/1000 = 3/8. Conversely, 3/8 = 0.375. With default values, the calculator gives the result: Fraction 3/8.

Who is the calculator suitable for?

For students, teachers, and anyone who needs a quick conversion between fractions and decimal numbers.

Tips and Notes

  • Use rounding only in the final stage.
  • Always check if the fraction can be simplified.
  • The percentage is obtained by multiplying the decimal number by one hundred.


Frequently Asked Questions