What is the Decimal to Fraction Calculator?
Convert a decimal number to its simplest fraction and mixed number. From percentages and fractions to logarithms and quadratic equations, these math calculators show exact results — using arbitrary-precision integers wherever whole-number answers can get very large.
How to use the Decimal to Fraction Calculator
- Enter your decimal.
- Results update automatically as you type; you can also press Calculate.
- Read the output: fraction, percentage.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With decimal = 0.625, the Decimal to Fraction Calculator returns fraction: 5/8; percentage: 62.5%.
Tips for better results
- Use the formula section on each page to check your homework method, not just the answer.
- For very large factorials, combinations and base conversions we use exact big-integer math.
- Floating-point results are rounded to 12 significant digits to remove binary noise.
Frequently asked questions
What does the Decimal to Fraction Calculator do?
Convert a decimal number to its simplest fraction and mixed number.
How is it calculated?
The Decimal to Fraction Calculator uses this method: Uses continued fractions to find the exact simplest fraction.
Can you show an example?
With decimal = 0.625, the Decimal to Fraction Calculator returns fraction: 5/8; percentage: 62.5%.
Is the Decimal to Fraction Calculator accurate?
Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.
Is this tool free and private?
Yes — the Decimal to Fraction Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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