# Decimal to Fraction Calculator Convert decimals into simplified fractions or mixed numbers with configurable tolerance and denominator limits > Canonical page: https://elysiatools.com/en/tools/decimal-to-fraction-calculator - **Category:** Math & Numbers - **Keywords:** decimal, fraction, calculator, mixed number, continued fraction ## Overview The Decimal to Fraction Calculator instantly converts any decimal value into a simplified fraction or mixed number. With customizable settings for maximum denominator and tolerance, it provides precise mathematical conversions ideal for engineering, woodworking, education, and everyday calculations. ## Inputs - **Decimal Value** (text): e.g. 2.375 - **Max Denominator** (number) - **Tolerance** (text): e.g. 0.0000001 - **Show Mixed Number** (checkbox) ## When to use - Converting precise engineering or manufacturing measurements into workable fractional units. - Simplifying complex decimal outputs from calculators into readable fractions for math assignments. - Translating digital design dimensions into standard fractional formats for woodworking or construction. ## How it works - Enter your target decimal value into the input field (e.g., 2.375). - Adjust the maximum denominator and tolerance settings to control the precision of the resulting fraction. - Toggle the mixed number option if you prefer formats like '2 3/8' instead of improper fractions like '19/8'. - The calculator processes the decimal using continued fractions and outputs the simplified result instantly. ## Use cases - Woodworkers converting decimal inch plans into standard tape measure fractions. - Students and teachers verifying math homework involving decimal-to-fraction conversions. - Machinists and engineers translating digital caliper readings into fractional specifications. ## Frequently asked questions ### What is the maximum denominator setting used for? It limits how large the bottom number of the fraction can be, helping you find practical approximations (like 1/16) instead of exact but unusable fractions (like 333/5000). ### How does the tolerance setting work? Tolerance defines the acceptable margin of error when converting the decimal. A smaller tolerance yields a more exact fraction, while a larger tolerance can help simplify the result. ### Can it output mixed numbers? Yes, by enabling the 'Show Mixed Number' option, decimals greater than 1 will be formatted as a whole number alongside a proper fraction (e.g., 2 1/2). ### What happens if I enter a repeating decimal? You can approximate repeating decimals by entering several repeating digits and adjusting the tolerance to find the exact simplified fraction. ### Is this tool suitable for construction measurements? Absolutely. 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