📏 Length Converter
Decimal Inches ↔ Tape Measure Fractions
Enter Value
Quick select fraction:
Result
—
Tape Measure Visualization
All Equivalents
Inches (fraction)
—
Inches (decimal)
—
Feet + inches
—
Millimeters
—
Centimeters
—
Meters
—
| Fraction | Decimal | mm |
|---|
📏 How to Use the Converter
This calculator solves the main problem for builders: converting decimal inches to fractions
that can be found on a tape measure, and vice versa. No more guessing where 0.625 is on the tape —
the calculator shows it's 5/8".
Converting Decimals to Fractions
Select the "Decimal" tab and enter a number. The calculator will automatically find the nearest fraction with 1/16 inch precision — the standard precision of most tape measures.
Examples
5.625 → 5 5/8"3.3125 → 3 5/16"0.0625 → 1/16"
Converting Fractions to Decimals
Select the "Fraction" tab and enter the value: whole inches, numerator, and denominator. Or use the quick select buttons for common fractions.
Calculator Features
Two-way Conversion
From decimals to fractions and back
Tape Measure Visualization
Visually shows mark position
Multiple Units
Inches, feet, mm, cm, meters
Quick Fraction Selection
Buttons for common values
Tips
💡 How to Read a Tape Measure
On a standard American tape measure, the length of marks indicates their value: the longest are whole inches, then come 1/2, 1/4, 1/8, and the shortest are 1/16.
💡 Formulas
Fraction → decimal: Result = Whole + (Numerator ÷ Denominator)
Example: 5 5/8 = 5 + (5 ÷ 8) = 5.625"