This fraction to decimal converter changes a proper or mixed fraction into a decimal with the rounding precision you choose.
Math
Fraction to Decimal Converter
Convert a proper or mixed fraction to a rounded decimal.
Calculator
About this calculator
Formula notes
Decimal value = whole number + numerator ÷ denominator, rounded to the selected number of decimal places.
Worked examples
- Example: 1/3 rounded to 3 decimal places is 0.333.
- The mixed fraction 2 7/8 equals 2.875 as a decimal.
How to use it
- Choose a simple fraction or mixed-number form.
- Enter the numerator and a nonzero denominator.
- Select the rounding precision and read the decimal result.
Frequently asked questions
What happens if the denominator is zero?
Division by zero is undefined, so the calculator rejects a zero denominator.
Can I keep more than six decimal places?
Yes. The custom option supports up to 16 decimal places when the extra precision is useful.
Limits and interpretation
- Rounding can hide repeating digits, so the displayed decimal may not preserve the exact rational value.
- The denominator must be nonzero, and very large numerator or denominator values may exceed ordinary floating-point precision.