Power Calculators

½ Decimal to Fraction Calculator

Convert a terminating decimal to a fraction using a user-selected number of decimal places.

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Enter details

Enter the number of digits after the decimal point used to represent the value.

Fill in the details and click Calculate to see your results.


Also available in our Android app, with charts and full breakdown tables.

📘 About the Decimal to Fraction

Choose the number of decimal places represented by the input.

For example, 0.75 with 2 places becomes 75/100.

The current engine does not include GCD reduction, so the result may not be in lowest terms.

🧮 Formula

Formula
Numerator = round(decimal x 10^p); denominator = 10^p
Numerator = round(decimal x 10^p); denominator = 10^p

✏️ Worked example

0.75 with 2 decimal places

You enter
Decimal Number0.75
Decimal Places2
You get
Fraction Numerator75
Fraction Denominator100
Decimal Check0.75

0.75 becomes 75/100, which is equivalent to 3/4.

Try this example →

🧭 How to use this calculator

What you enter

  • Decimal Number
  • Decimal PlacesEnter the number of digits after the decimal point used to represent the value.

What you get

  • Fraction Numerator
  • Fraction Denominator
  • Decimal Check

💡 Important notes

  • This calculator is designed for terminating decimal representations.
  • Choose places carefully for values such as 0.333333.

❓ Frequently asked questions

How does decimal to fraction work?

Multiply the decimal by a power of ten based on its decimal places.

Why is 0.75 shown as 75/100?

Because this calculator preserves the selected decimal-place scale and does not reduce by GCD.

Can repeating decimals be converted exactly?

Not with this simple terminating-decimal method.