Length Converter
Enter a length below to convert between metric and imperial length units.
Convert Length
Enter a value and select the units to convert between meters, feet, and inches.
You can change the units using the dropdowns above or click on a unit button.
Common Length Reference Points
Here are some common length values in Meter (m), Foot (ft), and Inch (in). Click any preset value or arrow to load it into the converter.
| Description | Meter (m) | Foot (ft) | Inch (in) |
|---|---|---|---|
| 1 centimeter (0.01 m) | 0.01 | 0.03281 | 0.3937 |
| Standard 30 cm ruler | 0.3 | 0.98425 | 11.81102 |
| 1 meter SI base length | 1 | 3.28084 | 39.37008 |
| Standard doorway height (2 m) | 2 | 6.56168 | 78.74016 |
| 10 meters benchmark | 10 | 32.8084 | 393.70079 |
| Olympic swimming pool (50 m) | 50 | 164.04199 | 1,968.50394 |
| 100-meter track sprint | 100 | 328.08399 | 3,937.00787 |
Length Conversion Formulas
Use the following formulas to convert between meters, feet, and inches.
Under the 1959 International Yard and Pound Agreement, 1 foot is defined as exactly 0.3048 meters (and 1 inch = 2.54 cm).
More Meter & Foot Conversions
Convert from Meters
Frequently Asked Questions
All Length Conversion Calculators (52)
Select any dedicated length pair below for worked examples and printable tables
Category Conversion Matrix
Simultaneous comparison of 45 units in this category
Length Unit Definitions & Symbols
Meter (m)
SIThe fundamental SI unit of length, defined by the speed of light in vacuum.
Kilometer (km)
SIMetric unit equal to 1,000 meters.
Centimeter (cm)
METRICMetric unit equal to one-hundredth of a meter (0.01 m).
Millimeter (mm)
METRICMetric unit equal to one-thousandth of a meter (0.001 m).
Micrometer (Micron) (µm)
METRICOne millionth of a meter (10⁻⁶ m), also known as a micron.
Nanometer (nm)
METRICOne billionth of a meter (10⁻⁹ m), used in nanotechnology and optics.
Picometer (pm)
METRICOne trillionth of a meter (10⁻¹² m), used for atomic radii.
Femtometer (Fermi) (fm)
METRICOne quadrillionth of a meter (10⁻¹⁵ m), used in nuclear physics.
Angstrom (Å)
OTHERCrystallography and atomic scale unit equal to 0.1 nanometers (10⁻¹⁰ m).
Decimeter (dm)
METRICMetric unit equal to one-tenth of a meter (10 cm).
Dekameter (Decameter) (dam)
METRICMetric unit equal to 10 meters.
Hectometer (hm)
METRICMetric unit equal to 100 meters.
Megameter (Mm)
SIMetric unit equal to 1,000,000 meters (1,000 km).
Gigameter (Gm)
SIMetric unit equal to 1,000,000,000 meters (1 million km).
Terameter (Tm)
SIMetric unit equal to 10¹² meters.
Petameter (Pm)
SIMetric unit equal to 10¹⁵ meters.
Exameter (Em)
SIMetric unit equal to 10¹⁸ meters.
Inch (in)
IMPERIALImperial and US Customary unit defined exactly as 25.4 millimeters.
Foot (ft)
IMPERIALImperial unit equal to 12 inches (0.3048 meters exactly).
US Survey Foot (ft (US))
US CUSTOMARYGeodetic US Survey foot defined as 1200/3937 meters (approx. 0.30480061 m).
Yard (yd)
IMPERIALImperial unit equal to 3 feet or 36 inches (0.9144 meters).
Mile (Statute) (mi)
IMPERIALStatute mile equal to 5,280 feet or 1,760 yards (1.609344 km).
Nautical Mile (nmi)
OTHERMaritime and aviation unit defined as exactly 1,852 meters.
Mil (Thou) (mil)
IMPERIALOne thousandth of an inch (0.001 in = 0.0254 mm), used in manufacturing tolerances and film thickness.
Microinch (µin)
IMPERIALOne millionth of an inch (0.0254 micrometers), used in surface roughness gauging.
Point (Typography) (pt)
OTHERDesktop publishing point equal to 1/72 of an international inch (0.35278 mm).
Pica (Typography) (pc)
OTHERTypographical unit equal to 12 points or 1/6 of an inch (4.2333 mm).
Fathom (ftm)
IMPERIALNautical depth unit equal to 6 feet or 2 yards (1.8288 m).
Rod (Pole / Perch) (rd)
IMPERIALSurveying unit equal to 16.5 feet or 5.5 yards (5.0292 m).
Gunter's Chain (ch)
IMPERIALLand surveying unit equal to 66 feet, 4 rods, or 100 links (20.1168 m).
Furlong (fur)
IMPERIALUnit equal to 1/8 of a mile, 660 feet, or 220 yards (201.168 m).
League (lea)
IMPERIALHistorical distance unit equal to 3 statute miles (4.828 km).
Hand (hh)
IMPERIALEquestrian height unit equal to 4 inches (10.16 cm).
Gunter's Link (li)
IMPERIALSurveying unit equal to 1/100 of a chain or 7.92 inches (0.66 ft).
Cubit (Standard / Greek) (cubit)
OTHERAncient unit of length based on the forearm, standardized at 18 inches (0.4572 m).
Long Cubit (Royal) (long cubit)
OTHERAncient Royal / Biblical long cubit equal to 21 inches (0.5334 m).
Caliber (cal)
OTHERFirearms bore diameter unit equal to 0.01 inch or 0.254 millimeters.
Astronomical Unit (AU)
OTHERMean Earth-to-Sun distance defined by the IAU as exactly 149,597,870,700 meters.
Light Year (ly)
OTHERDistance light travels in vacuum in one Julian year (365.25 days ≈ 9.4607×10¹⁵ m).
Parsec (pc)
OTHERAstronomical distance equal to approx. 3.26156 light years (3.0857×10¹⁶ m).
Kiloparsec (kpc)
OTHEREqual to 1,000 parsecs (approx. 3,261.56 light years).
Megaparsec (Mpc)
OTHEREqual to 1,000,000 parsecs.
Bohr Radius (Atomic Unit) (a₀)
OTHERMean radius of the orbit of an electron in a ground-state hydrogen atom (0.529177 Å).
Earth Equatorial Radius (R⊕)
OTHERWGS-84 equatorial radius of Earth (6,378.137 km).
Solar Radius (R☉)
OTHERIAU nominal solar radius (695,700 km).
References
- [1]NIST SI LengthNIST OWM (NIST SI Length)·SI Units — Length: Official U.S. Metrology Definitions & International Yard Agreement
- [2]BIPM Metre StandardBIPM (BIPM SI-9)·SI Base Unit: The Metre (m) — Official Definition & Realization
- [3]NIST Handbook 133 PDFNIST HB 133 (NIST HB 133)·Checking the Net Contents of Packaged Goods, Handbook 133 (2019 Edition)