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Inches to Meters

Convert inches to meters instantly — one inch is 0.0254 meters.

Inches
Meters
1 in = 0.0254 m · multiply by 0.0254
InchesMeters
1 in0.0254 m
2 in0.0508 m
3 in0.0762 m
5 in0.127 m
10 in0.254 m
25 in0.635 m
50 in1.27 m
100 in2.54 m

How to use

  1. Enter a value in the Inches field.
  2. The Meters figure appears immediately — no button to press.
  3. Typing in the Meters field converts back to Inches the same way.
  4. Use the reference table for the values that come up most often.

Inches to Meters formula

Converting inches to meters is a single multiplication by 0.0254.

m = in × 0.0254

Why this factor: the inch and the meter are both defined against the meter, so dividing one definition by the other gives 0.0254 directly. Both definitions are set out in full below.

To go the other way, divide by 0.0254 — or use the Meters to Inches converter, which is the same calculation reversed.

Worked example

Start with 12 in. Multiply by 0.0254 to get 0.3048 m.

12 in × 0.0254 = 0.3048 m

The converter above does this for any value you type, in either direction.

What is an inch?

An inch is one twelfth of a foot, used for small dimensions and for screen and wheel sizes globally.

Definition: Exactly 25.4 millimeters since the 1959 International Yard and Pound Agreement — an exact, not approximate, relation.

Where it is used: Screen diagonals, pipe and fastener sizes, tire and wheel diameters, and print layout worldwide.

What is a meter?

The meter is the SI base unit of length — the reference every other length unit is now defined against.

Definition: Since 1983 the meter has been defined by fixing the speed of light in vacuum at exactly 299,792,458 meters per second, so a meter is the distance light travels in 1/299,792,458 of a second.

Where it is used: Universal in science, engineering and everyday measurement everywhere except the United States.

Inches vs Meters

The inch is an imperial unit while the meter is an SI unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.

Frequently asked questions

How many meters are in an inch?

One inch equals 0.0254 meters.

What is the formula to convert inches to meters?

Multiply the number of inches by 0.0254. To reverse it, divide by 0.0254 instead.

How do I convert meters back to inches?

Divide by 0.0254, which is the same as multiplying by 39.3700787.

How many meters are in 10 inches?

10 in works out to 0.254 m.

How is the inch defined?

Exactly 25.4 millimeters since the 1959 International Yard and Pound Agreement — an exact, not approximate, relation.