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Millimeter (mm) - Unit Information & Conversion

Symbol:mm
Plural:millimeters
Category:Length

What is a Millimeter?

Definition

The millimeter is a unit of length in the metric system equal to one-thousandth of a meter (1/1000 m) or one-tenth of a centimeter (1/10 cm). It is used for very precise measurements.

History

Defined as a subunit of the meter within the original metric system, the millimeter provides a standard unit for fine measurements required in science, engineering, and manufacturing.

Common Uses

  • Engineering & Machining: Precise engineering and machining measurements.
  • Technical Design: Technical drawings and specifications.
  • Electronics: Measuring small electronic components or wire gauges.
  • Meteorology: Measuring rainfall amounts.
  • Science: Scientific measurements requiring high precision (e.g., microscopy).

Unit FAQs

How many millimeters are in a centimeter?

There are 10 millimeters (mm) in 1 centimeter (cm).

How many millimeters are in a meter?

There are 1,000 millimeters (mm) in 1 meter (m).

What does 'milli' mean in millimeter?

The prefix 'milli' denotes one-thousandth (1/1000).

Millimeter Conversion Formulas

To Meter:

1 mm = 0.001 m
Example: 5 millimeters = 0.005 meters

To Kilometer:

1 mm = 0.000001 km
Example: 5 millimeters = 0.000005 kilometers

To Hectometer:

1 mm = 0.00001 hm
Example: 5 millimeters = 0.00005 hectometers

To Decimeter:

1 mm = 0.01 dm
Example: 5 millimeters = 0.05 decimeters

To Centimeter:

1 mm = 0.1 cm
Example: 5 millimeters = 0.5 centimeters

To Inch:

1 mm = 0.03937 in
Example: 5 millimeters = 0.19685 inches

To Foot:

1 mm = 0.003281 ft
Example: 5 millimeters = 0.016404 feet

To Yard:

1 mm = 0.001094 yd
Example: 5 millimeters = 0.005468 yards

To Mile:

1 mm = 6.2137e-7 mi
Example: 5 millimeters = 0.000003 miles

To Nautical Mile:

1 mm = 5.3996e-7 NM
Example: 5 millimeters = 0.000003 nautical miles

To Micrometer:

1 mm = 1000 μm
Example: 5 millimeters = 5000 micrometers

To Nanometer:

1 mm = 1000000 nm
Example: 5 millimeters = 5000000 nanometers

To Light Year:

1 mm = 1.0570e-19 ly
Example: 5 millimeters = 5.2849e-19 light years

To Astronomical Unit:

1 mm = 6.6845e-15 AU
Example: 5 millimeters = 3.3422e-14 astronomical units

To Parsec:

1 mm = 3.2408e-20 pc
Example: 5 millimeters = 1.6204e-19 parsecs

To Angstrom:

1 mm = 10000000 Å
Example: 5 millimeters = 50000000 angstroms

To Point (Typography):

1 mm = 2.834644 pt
Example: 5 millimeters = 14.173219 points

To Mil/Thou:

1 mm = 39.370079 mil
Example: 5 millimeters = 196.850394 mils

To Fathom:

1 mm = 0.000547 fath
Example: 5 millimeters = 0.002734 fathoms

To Furlong:

1 mm = 0.000005 fur
Example: 5 millimeters = 0.000025 furlongs

To Link (Gunter's):

1 mm = 0.004971 li
Example: 5 millimeters = 0.024855 links

To Pace:

1 mm = 0.001312 pace
Example: 5 millimeters = 0.006562 paces

To Span:

1 mm = 0.004374 span
Example: 5 millimeters = 0.021872 spans

To Digit:

1 mm = 0.052493 digit
Example: 5 millimeters = 0.262467 digits

To Cable Length:

1 mm = 0.000005 cb
Example: 5 millimeters = 0.000027 cable lengths

To Ell:

1 mm = 0.000875 ell
Example: 5 millimeters = 0.004374 ells

To Finger:

1 mm = 0.008749 finger
Example: 5 millimeters = 0.043745 fingers

To Roman Mile:

1 mm = 6.7568e-7 m.p.
Example: 5 millimeters = 0.000003 Roman miles

To Stadion:

1 mm = 0.000005 stadion
Example: 5 millimeters = 0.000027 stadia

To Chi (Chinese):

1 mm = 0.003 chi
Example: 5 millimeters = 0.015002 chi

To Shaku (Japanese):

1 mm = 0.0033 shaku
Example: 5 millimeters = 0.016502 shaku

To Li (Chinese):

1 mm = 0.000002 li
Example: 5 millimeters = 0.00001 li

To Toise:

1 mm = 0.000513 toise
Example: 5 millimeters = 0.002565 toise

To Bolt:

1 mm = 0.000033 bolt
Example: 5 millimeters = 0.000164 bolts

To Rope:

1 mm = 0.000164 rope
Example: 5 millimeters = 0.00082 ropes

To Smoot:

1 mm = 0.000588 smoot
Example: 5 millimeters = 0.002938 smoots

To Sajene:

1 mm = 0.000469 sajene
Example: 5 millimeters = 0.002343 sajenes

To Ken:

1 mm = 0.00055 ken
Example: 5 millimeters = 0.00275 ken

To Wa:

1 mm = 0.0005 wa
Example: 5 millimeters = 0.0025 wa

To Vara:

1 mm = 0.001193 vara
Example: 5 millimeters = 0.005965 varas

To Aln:

1 mm = 0.001684 aln
Example: 5 millimeters = 0.008418 alnar

To Cubit (Royal/Egyptian):

1 mm = 0.001912 cubit
Example: 5 millimeters = 0.00956 cubits

To Versta:

1 mm = 9.3738e-7 versta
Example: 5 millimeters = 0.000005 versts

To Arpent:

1 mm = 0.000017 arpent
Example: 5 millimeters = 0.000086 arpents

To Ri (Japanese):

1 mm = 2.5465e-7 ri
Example: 5 millimeters = 0.000001 ri

To Klafter:

1 mm = 0.000527 klafter
Example: 5 millimeters = 0.002636 klafter

To Yojana:

1 mm = 7.4074e-8 yojana
Example: 5 millimeters = 3.7037e-7 yojanas

To Skein:

1 mm = 0.000009 skein
Example: 5 millimeters = 0.000046 skeins

Convert Millimeter

Need to convert Millimeter to other length units? Use our conversion tool.

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Millimeter Quick Info

mm
Symbol:mm
Category:Length
System:Metric (SI)
Convert Millimeter

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