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Length and Area

intom

Convert inches (in) to metres (m).

Factor1 in = 0.0254 m

Converter

in

Accepts numbers or expressions, e.g. 150 + 14.7

Result
2.54m

Rendered to 6 significant figures.

Formula

Formula
m = in × 0.0254

Multiply any value in inches by 0.0254 to obtain the value in metres.

Worked example

Convert 100 in to m.

  1. 01Start with 100 in.
  2. 02Multiply by the conversion factor: 100 × 0.0254 = 2.54 m.
Result100 in = 2.54 m

Conversion table

inm
10.0254
20.0508
50.127
100.254
200.508
501.27
1002.54
2005.08
50012.7
100025.4

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from in to m?
1 in equals 0.0254 m. To convert, multiply the value in inches by 0.0254.
How do I convert 1 in to m?
1 in = 0.0254 m. For any value, multiply by 0.0254.
How do I convert m back to in?
Divide by the same factor — or equivalently, multiply by 39.37008. So 1 m = 39.3701 in.
When would I need to convert inch to metre?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
Yes. Both in and m are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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