Convert Inches to Meters
1 inch (in) equals 0.0254 meters (m).
1 in = 0.0254 m
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk inch to meter converter to paste a column from Excel.
How to Convert Inch to Meter
- 1 in = 0.0254 m
- 1 m = 39.37007874 in
- Example: convert 15 in to m: 15 in = 15 × 0.0254 m = 0.381 m
Reference conditions. in: The international yard and pound agreement (1959) fixed 1 yard = 0.9144 m exactly, so the inch, foot and mile are exact.
Formula
m = in × 0.0254
or m = in ÷ 39.37007874016
Derivation from SI units:
- 1 in = 2.54 cm = 0.0254 m (exact)
- SI base unit: the distance light travels in vacuum in 1/299 792 458 s
Both units are defined exactly, so the factor is exact. Inch definition: inch; Meter definition: meter.
Worked examples
- 39.37 in is almost exactly 0.999998 m.
39.37 in × 0.0254 = 0.999998 m - 100 in is 2.54 m.
100 in × 0.0254 = 2.54 m
Inch to Meter conversion table
| Inches (in) | Meters (m) |
|---|---|
| 0.125 in | 0.003175 m |
| 0.25 in | 0.00635 m |
| 0.5 in | 0.0127 m |
| 0.75 in | 0.01905 m |
| 1 in | 0.0254 m |
| 1.5 in | 0.0381 m |
| 2 in | 0.0508 m |
| 3 in | 0.0762 m |
| 4 in | 0.1016 m |
| 5 in | 0.127 m |
| 6 in | 0.1524 m |
| 8 in | 0.2032 m |
| 10 in | 0.254 m |
| 12 in | 0.3048 m |
| 15 in | 0.381 m |
| 20 in | 0.508 m |
| 24 in | 0.6096 m |
| 27 in | 0.6858 m |
| 32 in | 0.8128 m |
| 36 in | 0.9144 m |
| 48 in | 1.2192 m |
| 55 in | 1.397 m |
| 65 in | 1.651 m |
| 72 in | 1.8288 m |
Where it's used
Inch dimensions are converted to metres for SI calculations such as area, volume and stress.
Inch to other length units
| Conversion | 1 in equals |
|---|---|
| inch to meter | 0.0254 m |
| inch to kilometer | 0.0000254 km |
| inch to centimeter | 2.54 cm |
| inch to millimeter | 25.4 mm |
| inch to micrometer | 25400 µm |
| inch to nanometer | 25400000 nm |
| inch to angstrom | 254000000 Å |
| inch to mile | 0.00001578282828 mi |
| inch to yard | 0.02777777778 yd |
| inch to foot | 0.08333333333 ft |
| inch to mil | 1000 mil |
| inch to nautical mile | 0.00001371490281 nmi |
Frequently asked questions
How do I convert inches to meters?
Multiply by 0.0254: 50 in = 1.27 m.
How many meters are in 1 inch?
1 in = 0.0254 m.
How do I convert inches to meters?
Multiply the value in in by 0.0254, or divide it by 39.37007874. For example, 15 in × 0.0254 = 0.381 m.
Is the in to m conversion exact?
Yes. Both units are defined exactly, and 1 in is exactly 0.0254 m.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "inch (in)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Section 2.3.1, base unit definitions.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Inches to Meters. Retrieved October 17, 2026, from https://scientificconverters.com/length/inches-to-meters/
IEEE
Scientific Converters, "Convert Inches to Meters," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/length/inches-to-meters/