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CALCULATOR

Inches to Millimeters Converter

Convert inches to millimeters. Enter a value to update the result.

YOUR INPUTS Live calculation

Example values. Enter your own inputs.

Millimeters

25.4mm
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How the calculation works

Millimeters = Inches × 25.4.

Worked example

With inches 1 in, millimeters is 25.4 mm.

Assumptions and limits

Standard length unit conversion. Results use finite floating-point arithmetic.

Method sources

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Millimeters25.4 mm
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