Reference sheet
Length conversion chart
Metres, feet, inches, miles and more. Factors are given to 7 significant figures; open the converter for full precision and the worked solution.
| Unit | In m | 1 m in unit |
|---|---|---|
| metre (m) | 1 m | 1 m |
| kilometre (km) | 1,000 m | 0.001 km |
| centimetre (cm) | 0.01 m | 100 cm |
| millimetre (mm) | 0.001 m | 1,000 mm |
| micrometre (µm) | 0.000001 m | 1,000,000 µm |
| nanometre (nm) | m | 1,000,000,000 nm |
| inch (in) | 0.0254 m | 39.37008 in |
| foot (ft) | 0.3048 m | 3.28084 ft |
| yard (yd) | 0.9144 m | 1.093613 yd |
| mile (mi) | 1,609.344 m | 0.0006213712 mi |
| nautical mile (nmi) | 1,852 m | 0.0005399568 nmi |
| mil (thou) (mil) | 0.0000254 m | 39,370.08 mil |
| US survey foot (ft (US survey)) | 0.3048006 m | 3.280833 ft (US survey) |
| astronomical unit (au) | 149,597,900,000 m | au |
| light-year (ly) | m | ly |
| ångström (Å) | m | 10,000,000,000 Å |
| cm | in |
|---|---|
| 0.1 cm | 0.03937008 in |
| 0.5 cm | 0.1968504 in |
| 1 cm | 0.3937008 in |
| 2 cm | 0.7874016 in |
| 5 cm | 1.968504 in |
| 10 cm | 3.937008 in |
| 20 cm | 7.874016 in |
| 25 cm | 9.84252 in |
| 50 cm | 19.68504 in |
| 100 cm | 39.37008 in |
| 250 cm | 98.4252 in |
| 500 cm | 196.8504 in |
| 1,000 cm | 393.7008 in |
| in | cm |
|---|---|
| 0.1 in | 0.254 cm |
| 0.5 in | 1.27 cm |
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 20 in | 50.8 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| 250 in | 635 cm |
| 500 in | 1,270 cm |
| 1,000 in | 2,540 cm |
Formula: in = cm ÷ 2.54
Need another value? Use the cm to in converter or the length converter.
Unitglide · unitglide.app/reference/length · Factors from NIST SP 811, NIST Handbook 44 and the BIPM SI Brochure (9th ed.). Values rounded to 7 significant figures unless exact.