Millimeters (mm) - Length / Distance Conversions
A millimeter is a unit of Length or Distance in the Metric System. The symbol for millimeter is mm and the International spelling for this unit is millimetre.
The base unit for a millimeter is meter and the prefix is milli. The prefix milli is derived from the Latin mille meaning one thousand and is symbolized as m in the Metric System. Milli denotes a factor of one thousandth (1/1000th) which means that there are 1,000 millimeters in a meter.
Select a Conversion
Select one of the millimeter conversions below:
- Millimeter to Angstrom (mm to Å)
- Millimeter to Centimeter (mm to cm)
- Millimeter to Decameter (mm to dam)
- Millimeter to Decimeter (mm to dm)
- Millimeter to Feet (mm to ft)
- Millimeter to Gigameter (mm to Gm)
- Millimeter to Hectometer (mm to hm)
- Millimeter to Inch (mm to in)
- Millimeter to Kilometer (mm to km)
- Millimeter to Megameter (mm to Mm)
- Millimeter to Meter (mm to m)
- Millimeter to Micrometer (mm to μm)
- Millimeter to Mile (mm to mi)
- Millimeter to Nanometer (mm to nm)
- Millimeter to Nautical Mile (mm to nmi)
- Millimeter to Picometer (mm to pm)
- Millimeter to Yard (mm to yd)
Unit Summary
This table provides a summary of the Length or Distance units within their respective measurement systems.
| Unit | Symbol | Measurement System |
|---|---|---|
| inches | in or " | US Customary Units/Imperial System |
| feet | ft or ' | US Customary Units/Imperial System |
| yards | yd | US Customary Units/Imperial System |
| miles | mi | US Customary Units/Imperial System |
| picometers | pm | Metric System |
| nanometers | nm | Metric System |
| micrometers | μm | Metric System |
| millimeters | mm | Metric System |
| centimeters | cm | Metric System |
| decimeters | dm | Metric System |
| meters | m | Metric System |
| decameters | dam or dkm | Metric System |
| hectometers | hm | Metric System |
| kilometers | km | Metric System |
| megameters | Mm | Metric System |
| gigameters | Gm | Metric System |
| nautical miles | M or NM or nmi | Non-SI (International) |
| angstroms | Å | Non-SI (International) |
| rods | rod | Non-SI (International) |
Note: For Length and Distance conversions, US Customary Units and the Imperial System are equivalent.
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