Fraction to Decimal Converter

Convert a fraction to a decimal and a percent. Enter the numerator and denominator.

Decimal
—
Numerator over denominator.

Usage Tip

Worth memorizing: 1/2 = 0.5, 1/4 = 0.25, 1/3 = 0.333, 1/8 = 0.125.

THE MATH
decimal = numerator ÷ denominator
percent = decimal × 100
Dividing the numerator by the denominator gives the decimal form.
Some fractions terminate (1/4 = 0.25); others repeat (1/3 = 0.333…).
The decimal is rounded to six places; repeating decimals are not shown with a bar.
The fraction is also reduced to lowest terms.
Multiply the decimal by 100 for the percent.
Scroll to Top

The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.