Convert centimeter to millimeter
1 cm = 10 mm
sig figs
1 cm = 10 mm
1 cm in every length unit
| Planck length | 6.19e+32 lP |
| femtometer | 10,000,000,000,000 fm |
| picometer | 10,000,000,000 pm |
| bohr radius | 189,000,000 a0 |
| angstrom | 100,000,000 Å |
| nanometer | 10,000,000 nm |
| micrometer | 10,000 μm |
| thou | 394 thou |
| point | 28.3 pt |
| millimeter | 10 mm |
| pica | 2.36 pc |
| centimeter | 1 cm |
| inch | 0.394 in |
| decimeter | 0.1 dm |
| hand | 0.0984 hh |
| link | 0.0497 li |
| foot | 0.0328 ft |
| US survey foot | 0.0328 ftUS |
| yard | 0.0109 yd |
| meter | 0.01 m |
| fathom | 0.00547 ftm |
| rod | 0.00199 rd |
| chain | 0.000497 ch |
| cable length | 0.000054 cb |
| furlong | 0.0000497 fur |
| kilometer | 0.00001 km |
| mile | 0.00000621 mi |
| nautical mile | 0.0000054 nmi |
| league | 0.00000207 lea |
| megameter | 1.00e-08 Mm |
| Earth radius | 1.57e-09 REarth |
| light-second | 3.34e-11 ls |
| lunar distance | 2.60e-11 LD |
| solar radius | 1.44e-11 Rsun |
| light-minute | 5.56e-13 lmin |
| astronomical unit | 6.68e-14 AU |
| light-year | 1.06e-18 ly |
| parsec | 3.24e-19 pc |
| kiloparsec | 3.24e-22 kpc |
| megaparsec | 3.24e-25 Mpc |
| gigaparsec | 3.24e-28 Gpc |
How the conversion works
Multiply by 10 to go from centimeter to millimeter, or divide by it to go back. Every conversion on this site routes through the SI value (m) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? millimeter to centimeter: 1 mm = 0.1 cm.
centimeter to millimeter: common values
| 1 cm | 10 mm |
| 2 cm | 20 mm |
| 3 cm | 30 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 15 cm | 150 mm |
| 20 cm | 200 mm |
| 25 cm | 250 mm |
| 50 cm | 500 mm |
| 75 cm | 750 mm |
| 100 cm | 1,000 mm |
| 250 cm | 2,500 mm |
| 500 cm | 5,000 mm |
| 1000 cm | 10,000 mm |