Convert inches to meters
Convert inches to meters instantly. 1 in = 0.0254 m. Formula, worked examples and a quick reference table.
Last updated
One inch equals 0.0254 meters. To convert any number of inches to meters, multiply by 0.0254.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Length conversions come up wherever a measurement crosses a border: a height given in feet and inches on a form that wants centimetres, a running distance recorded in kilometres and compared against miles, a component specified in millimetres and ordered from a supplier working in inches. The conversions themselves are exact — the inch, foot, yard and mile have all been defined in metric terms since 1959 — so any discrepancy comes from rounding, not from the units disagreeing.
inches to meters formula
To go the other way, use inch = meter ÷ 0.0254.
About these units
The inch has been defined as exactly 25.4 millimetres since the 1959 international yard and pound agreement, which finally reconciled slightly different British and American definitions.
The metre is defined by the speed of light: the distance light travels in 1/299,792,458 of a second. Every other length unit is now defined against it.
Inch is also written inches and ". Meter is also written metre, metres and meters.
Sources
inches to meters conversion table
| Inch | Meter |
|---|---|
| 1 in | 0.0254 m |
| 2 in | 0.0508 m |
| 3 in | 0.0762 m |
| 5 in | 0.127 m |
| 10 in | 0.254 m |
| 20 in | 0.508 m |
| 25 in | 0.635 m |
| 50 in | 1.27 m |
| 100 in | 2.54 m |
| 250 in | 6.35 m |
| 500 in | 12.7 m |
| 1,000 in | 25.4 m |
Frequently asked questions
How many meters are in a inch? +
There are 0.0254 meters in one inch.
What is 10 in in m? +
10 in equals 0.254 m. Multiply 10 by 0.0254.
How do I convert meter back to inch? +
Use inch = meter ÷ 0.0254. The converter above handles both directions, or see our dedicated meters to inches page.
How accurate is this inch to meter conversion? +
The factor used is 0.0254, carried at full double precision. Where a unit has an exact legal definition the factor is exact rather than approximate. Rounding is applied only to the displayed result, so the answer is never a calculation done on an already-rounded number.
Is there a quick way to estimate in to m in my head? +
The factor is exactly 0.0254, which is short enough to apply directly without an approximation.