Switch between decimals and reduced fractions, including mixed numbers like 1 1/2. Values between 0 and 1 show a part-of-whole bar for intuition.
How to use
- Pick decimal → fraction or fraction → decimal.
- Enter 0.375, 3/8, 1 1/2, etc.
- Read the hero result plus the other form; bar for 0–1.
Decimal to fraction
0.375 → 375/1000 → reduce to 3/8. Repeating decimals: type enough digits; we do not infer the repeat block.
Examples
0.125 → 1/8; 3/4 → 0.75; 1 1/2 → 1.5.
Percent context → percentage calculator; fraction arithmetic → fraction calculator.
Notes
Very long inputs may hit display limits; invalid syntax shows an error.
Frequently asked questions
Which input formats work?
Decimals, fractions like 3/8, mixed numbers like 1 1/2, negatives OK—fractions reduce to lowest terms.
How does decimal → fraction work?
Count decimal places → fraction over 10ⁿ → divide by GCF—0.375 → 375/1000 → 3/8.
When does the part bar show?
For results between 0 and 1, a part-of-whole bar appears; values above 1 usually skip the bar.
Repeating decimals?
Type enough digits; we do not infer repeating blocks symbolically.
Vs fraction or percentage calculators?
Conversion only—arithmetic on fraction calculator; percents on percentage calculator.
Mixed numbers like 1 1/2?
Parsed as improper 3/2 → decimal 1.5. Reverse gives reduced fraction from your input.
Can I save my inputs?
Yes. Copy link below the form keeps your current inputs so you can share the scenario or save it for later.