# Fraction to Decimal Calculator

URL: https://speedycalculator.com/calculators/math/fraction-to-decimal/
Last updated: 2026-10-25

> The fraction to decimal calculator divides the numerator by the denominator to convert a fraction or mixed number into a decimal and a percentage.

## Inputs

- Whole number (optional)
- Numerator
- Denominator

## Results

- Decimal
- Percentage

## Formula

```
Decimal = whole + numerator ÷ denominator
```

## Explanation

Converting fractions to decimals makes them easy to compare and use in calculators and spreadsheets.

### How to use the Fraction to Decimal Calculator

- **Whole number (optional)**
- **Numerator**
- **Denominator**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Divide the numerator by the denominator and add any whole number part.

### Inputs explained

FieldWhat to enterWhole number (optional)A numberNumeratorA numberDenominatorA number

### What each result means

- **Decimal** = [Whole number (optional)] + [Numerator] ÷ [Denominator]
- **Percentage** = [Decimal] × 100

## Worked example

Inputs — Whole number (optional): 0; Numerator: 7; Denominator: 8.

Results — **Decimal = 0.875**; Percentage = 87.5 %.

## FAQ

**Why do some fractions give repeating decimals?**
When the denominator has prime factors other than 2 and 5, such as 1/3.

**How do I convert a percentage back?**
Divide by 100 and simplify.

**What formula does the Fraction to Decimal Calculator use?**
Decimal = whole + numerator ÷ denominator.