Inches to Fraction Calculator

Convert Inches to Fractions Instantly

Enter the measurement in decimal inches.

Need to convert decimal inches to standard fractions for your project? Our Inches to Fraction Calculator makes it simple! Quickly transform values like 0.75" into 3/4", ensuring precision for your measurements in woodworking, metalworking, or any craft. Get accurate fractional results instantly.

Formula:

This calculator converts a decimal inch value into its closest fractional representation. While there isn't a single simple algebraic formula, the process involves:

  • Separating the Whole Number from the Decimal Part.
  • Multiplying the Decimal Part by a chosen denominator (e.g., 64 or 128) to find the nearest integer numerator.
  • Simplifying the resulting fraction to its lowest terms.

Example: Input 1.25 inches.

  • Whole number: 1
  • Decimal part: 0.25
  • 0.25 * 64 = 16 (approximate numerator)
  • Fraction: 16/64 which simplifies to 1/4.
  • Result: 1 1/4 inches.

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