Calculator
About Decimal to Fraction
Convert decimals to fractions exactly, including repeating decimals and nearest-inch fractions. See reduced and mixed-number results in your browser.
Tool details and FAQUse cases, limits, privacy, and related tools
Overview
Use this decimal to fraction calculator for finite decimals, explicitly repeating decimals, and decimal-inch measurements. It keeps the typed decimal as text so long values are not rounded through JavaScript number conversion.
Best for
- Reducing finite decimals such as 0.125 to an exact fraction.
- Converting repeating notation such as 0.(3) or 1.2(34).
- Rounding decimal inches to the nearest 1/2 through 1/64 ruler mark.
Not for
- Guessing whether a long decimal is intended to repeat.
- Scientific notation, regulated measurements, or automatic unit conversion.
How it works
- Choose exact decimal, repeating decimal, or nearest inch.
- Enter the decimal and select ruler precision when needed.
- Review the reduced fraction, mixed number, decimal check, and calculation method.
Limits and privacy
Repeating digits must be marked with parentheses. Inputs are limited to 50 digits, and nearest-inch mode accepts only zero or positive measurements.
Common uses
- Turn a decimal from homework, a report, or a calculator into a reduced fraction.
- Convert recurring decimals without guessing a repeating pattern.
- Match decimal-inch measurements to common woodworking and ruler fractions.
Useful facts
- Tiny Work Tools Decimal to Fraction Calculator performs exact integer-based reduction in the browser.
- The calculator does not upload or store the decimal input.
FAQ
How do I convert a decimal to a fraction?
Choose Exact decimal, enter a value such as 0.125, and convert it. The calculator writes the value over its power-of-ten denominator and reduces it to 1/8.
Can it convert repeating decimals?
Yes. Mark only the repeating digits in parentheses, such as 0.(3) for 1/3 or 1.2(34) for 611/495. The calculator never guesses which digits repeat.
How do I convert decimal inches to a ruler fraction?
Choose Nearest inch, enter the decimal-inch measurement, and select a ruler precision from 1/2 through 1/64. The result includes the nearest fraction and signed approximation error.
Does the calculator round long decimal inputs?
Exact and repeating modes preserve the typed value as text and use integer fraction arithmetic. Inputs can contain up to 50 digits.