Millimeter Conversions

A millimeter is one thousandth of a meter. It's the standard unit in engineering drawings, manufacturing, rainfall and screen and paper sizes.

From

To

1 mm = 0.001 m

Convert millimeters to other units

Each line shows how much 1 millimeter (mm) equals. Select a conversion for a calculator, formula and table.

Metric (SI)

Millimeter to Meter0.001 m
Millimeter to Kilometer0.000001 km
Millimeter to Hectometer0.00001 hm
Millimeter to Dekameter0.0001 dam
Millimeter to Decimeter0.01 dm
Millimeter to Centimeter0.1 cm
Millimeter to Micrometer1,000 µm
Millimeter to Micron1,000 µ
Millimeter to Nanometer1,000,000 nm
Millimeter to Angstrom10,000,000 Å
Millimeter to Picometer1,000,000,000 pm
Millimeter to Femtometer1,000,000,000,000 fm
Millimeter to Fermi1,000,000,000,000 fm
Millimeter to Attometer1 × 10¹⁵ am
Millimeter to Megameter1 × 10⁻⁹ Mm
Millimeter to Gigameter1 × 10⁻¹² Gm
Millimeter to Terameter1 × 10⁻¹⁵ Tm
Millimeter to Petameter1 × 10⁻¹⁸ Pm
Millimeter to Exameter1 × 10⁻²¹ Em

Imperial & US customary

Millimeter to Inch0.0393701 in
Millimeter to Foot0.00328084 ft
Millimeter to Yard0.00109361 yd
Millimeter to Mile6.21371 × 10⁻⁷ mi
Millimeter to Kiloyard0.00000109361 kyd
Millimeter to Furlong0.00000497097 fur
Millimeter to Chain0.0000497097 ch
Millimeter to Rope0.000164042 rope
Millimeter to Rod0.000198839 rd
Millimeter to Perch0.000198839 perch
Millimeter to Pole0.000198839 pole
Millimeter to Fathom0.000546807 ftm
Millimeter to Link0.00497097 li
Millimeter to Hand0.00984252 h
Millimeter to Mil39.3701 mil
Millimeter to Microinch39,370.1 µin

US survey units

Millimeter to Foot (US Survey)0.00328083 ft (US)
Millimeter to Inch (US Survey)0.03937 in (US)
Millimeter to Mile (US Survey)6.2137 × 10⁻⁷ mi (US)
Millimeter to Mile (Statute)6.2137 × 10⁻⁷ mi
Millimeter to League (Statute)2.07123 × 10⁻⁷ lea
Millimeter to Furlong (US Survey)0.00000497096 fur (US)
Millimeter to Chain (US Survey)0.0000497096 ch (US)
Millimeter to Rod (US Survey)0.000198838 rd (US)
Millimeter to Link (US Survey)0.00497096 li (US)
Millimeter to Fathom (US Survey)0.000546806 ftm (US)

Nautical

Millimeter to Nautical Mile (international)5.39957 × 10⁻⁷ NM
Millimeter to Nautical Mile (UK)5.39612 × 10⁻⁷ NM (UK)
Millimeter to Nautical League (int.)1.79986 × 10⁻⁷ NL
Millimeter to Nautical League (UK)1.79871 × 10⁻⁷ NL (UK)

Astronomical

Millimeter to Astronomical Unit6.68459 × 10⁻¹⁵ au
Millimeter to Light Year1.057 × 10⁻¹⁹ ly
Millimeter to Parsec3.24078 × 10⁻²⁰ pc
Millimeter to Kiloparsec3.24078 × 10⁻²³ kpc
Millimeter to Megaparsec3.24078 × 10⁻²⁶ Mpc

Atomic & physics

Millimeter to A.u. of Length18,897,300 a₀
Millimeter to X-unit9,979,240,000 xu

Historical & cloth

Millimeter to Ell0.000874891 ell
Millimeter to Cubit (UK)0.00218723 cubit
Millimeter to Span (cloth)0.00437445 span
Millimeter to Finger (cloth)0.00874891 finger
Millimeter to Nail (cloth)0.0174978 nail
Millimeter to Barleycorn0.11811 barleycorn
Millimeter to League2.07124 × 10⁻⁷ lea
Millimeter to Arpent0.0000170877 arpent
Millimeter to Mile (Roman)6.75765 × 10⁻⁷ m.p.

Typography

Convert other units to millimeters