Convert length units instantly — meters, feet, inches, centimeters, kilometers, miles, and more.
| Unit | Name | Value |
|---|---|---|
| m | Meter | 0.01 |
| km | Kilometer | 0.00001 |
| mm | Millimeter | 10 |
| in | Inch | 0.39370079 |
| ft | Foot | 0.032808399 |
| yd | Yard | 0.010936133 |
| mi | Mile | 0.0000062137119 |
| nmi | Nautical Mile | 0.000005399568 |
Multiply the number of Centimeters by 10 to get Millimeters. Formula: mm = cm × 10. Example: 10 cm × 10 = 100 mm. To reverse, divide Millimeters by 10 to get Centimeters.
| Centimeter (cm) | Millimeter (mm) |
|---|---|
| 0.001 cm | 0.01 mm |
| 0.01 cm | 0.1 mm |
| 0.1 cm | 1 mm |
| 0.5 cm | 5 mm |
| 1 cm | 10 mm |
| 2 cm | 20 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 20 cm | 200 mm |
| 50 cm | 500 mm |
| 100 cm | 1000 mm |
| 250 cm | 2500 mm |
| 500 cm | 5000 mm |
| 1000 cm | 10000 mm |
| 10000 cm | 100000 mm |
To convert Centimeter to Millimeter, multiply by 10. Example: 10 cm = 100 mm
To convert Millimeter back to Centimeter, divide by 10 (multiply by 0.1). Use the swap button above.
Start with 100 Centimeters = 1000 mm as your reference point. Scale up or down from there.
Engineering drawings use millimeters for all dimensions per ISO standard, while informal measurements and specifications are often expressed in centimeters. Machinists and engineers convert cm to mm constantly when reading non-standard drawings.
Radiologists measure tumours, lesions, and anatomical structures in millimeters in clinical reports, while patient records and nursing notes often use centimeters — the same measurement appears in both units in a single patient's file.
Precious metal sheet and wire is sold in millimeter thicknesses, while finished piece dimensions are described in centimeters. Jewellers convert between cm and mm for every purchase order and design specification.
Daily rainfall is reported in millimeters by meteorological stations, while seasonal totals and rainfall maps use centimeters. Hydrologists and farmers convert between mm and cm constantly in water resource management.
Print margins, gutter widths, and column measurements are specified in millimeters in professional publishing software, while designers often think and communicate in centimeters — conversion is constant in print production.
Paediatric height charts track growth in centimeters for the visible scale, while growth velocity is calculated in mm per month for clinical precision. Paediatricians convert between cm and mm in every growth assessment.
The Centimeter is a unit of Length measurement (symbol: cm). 1 cm = 10 mm. Used in scientific and practical Length measurement applications.
The Millimeter is a unit of Length measurement (symbol: mm). It is part of an internationally recognised measurement system used alongside the Centimeter.
The centimetre was introduced in 1795 as part of the French metric system — one-hundredth of a metre, from the Latin 'centum' (hundred). The CGS (centimetre-gram-second) system, built around the centimetre, became the dominant scientific measurement system in the 19th century and remains standard in astrophysics and electromagnetism today. The centimetre is now the primary unit for human body measurements, clothing sizes, and everyday objects in most of the world.
The millimetre was introduced alongside the metre in 1795 as part of the French metric system — one-thousandth of a metre, one-tenth of a centimetre. Its practical value emerged in precision engineering during the Industrial Revolution, when manufacturing tolerances first needed to be specified to sub-centimetre precision. By the 20th century, ISO engineering drawing standards adopted millimetres as the primary unit for all technical drawings worldwide. Today millimetres are the universal language of engineering — from watch mechanisms to aircraft fuselages.
Common use: Centimeter to Millimeter conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.