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Fraction to Decimal Converter

3/8 as a decimal0.375
Decimal (rounded)
0.375
Percent
37.5%
Simplest form
3/8
Type
Terminating decimal

Convert any fraction or mixed number to a decimal and a percentage. Repeating decimals such as 1/3 = 0.3̅ are shown exactly, not just rounded.

How to use the Fraction to Decimal Converter

  1. Enter the numerator (top number) and denominator (bottom number).
  2. For a mixed number such as 2 ¾, also enter the whole number.
  3. Read the decimal, the percentage and the simplest form.

How it works

A fraction is a division: decimal = numerator ÷ denominator. 3/8 = 3 ÷ 8 = 0.375. For a mixed number, convert to an improper fraction first: 2 ¾ = (2 × 4 + 3)/4 = 11/4 = 2.75.

A fraction in lowest terms gives a terminating decimal only when its denominator has no prime factors other than 2 and 5. Otherwise the digits repeat forever — 1/3 = 0.333…, 1/7 = 0.142857142857… — and the repeating block is marked with a bar.

Fraction to decimal chart

FractionDecimalFractionDecimal
1/20.51/160.0625
1/30.3̅3/160.1875
2/30.6̅5/160.3125
1/40.257/160.4375
3/40.759/160.5625
1/50.211/160.6875
1/80.12513/160.8125
3/80.37515/160.9375
5/80.6251/320.03125
7/80.8751/640.015625

Frequently asked questions

What is 3/8 as a decimal?

0.375.

What is 1/3 as a decimal?

0.333… — the 3 repeats forever, written 0.3̅.

How do I convert a mixed number to a decimal?

Divide the fraction part and add the whole number: 2 3/4 = 2 + 0.75 = 2.75.

How do I turn a fraction into a percentage?

Convert to a decimal and multiply by 100: 3/8 = 0.375 = 37.5%.

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