Decimal · Fraction · Percent Converter

Type a value in any form — decimal, fraction or percent — and the other two update instantly.

Decimal

Fraction numerator / denominator

Percent %

Equivalent values

Decimal—

Fraction—

Percent—

Ratio—

How to Use This Converter

Edit any of the three fields. Fractions need both a numerator and denominator. Non-terminating decimals are approximated to a fraction with a precision of 1/1,000,000.

Frequently Asked Questions

How do I convert a percent to a fraction?

Divide by 100 and simplify. 75% → 75/100 → 3/4.

How do I convert a fraction to a percent?

Divide numerator by denominator, then multiply by 100. 3/4 → 0.75 → 75%.

What if my decimal doesn't terminate?

Repeating decimals like 0.333… map to exact fractions (1/3). This tool finds the closest fraction to a fine precision.

Can decimals be negative?

Yes — negative values carry through all three forms, and the fraction keeps the negative sign.

Practical Example

Convert 0.75 across all forms:

Fraction: 0.75 = 75/100 = 3/4
Percentage: 0.75 × 100 = 75%
Ratio: 3 : 4

What Your Results Mean

Decimal — the base value, with fractions shown to a fine precision.
Fraction — the exact or closest simple ratio.
Percentage — the decimal scaled by 100.