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Inch Fraction Calculator

Decimals, fractions and millimetres. US units, change any unit beside its field.

Measurements

About this calculator

Turn a decimal or metric dimension into a fraction you can find on a tape, or the other way round. Fractions such as 7/16 are accepted as input.

How it’s calculated

Fraction = round(decimal × denominator) ÷ denominator, then simplified.

Worked example

With these inputs:

Convert from
Inches (decimal or fraction)
Value
0.4375

the result is:

Nearest 1/16"
7/16"
Nearest 1/32"
7/16"
Nearest 1/64"
7/16"
Decimal inches
0.4375"
Millimetres
11.11 mm

Tips from the trade

  • Most tapes are marked in 1/16". Cabinetmakers often work in 1/32".

Results are estimates for planning and pricing. Check quantities against your drawings, the manufacturer’s data and local building codes before ordering.