What is the Decimal to Fraction Calculator?
Convert a decimal number to its simplest fraction and mixed number. Turning decimals into simplified fractions helps with tape measures, recipes and homework where fractions are expected.
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%.
Where the Decimal to Fraction Calculator helps in real life
Your digital caliper reads 0.375 inches and your drill bits are marked in fractions. The calculator shows 3/8, so you can pick the right bit.
A recipe scaled by an app says 0.75 cups of milk. Converting to 3/4 makes it easy to measure with standard cups.
Common mistakes to avoid
- Leaving the fraction unsimplified.
- Rounding a repeating decimal and getting the wrong fraction.
- Forgetting to express values over 1 as mixed numbers.
- Entering too few decimal places for precise measurements.
💡 Practical tip: 0.375 equals 3/8 and 0.625 equals 5/8 — common sizes in woodworking.
Tips for better results
- Enter as many decimal places as you have.
- Check the answer by dividing the fraction back.
- Use mixed numbers for measurements above 1.
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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