The meter is a unit used to measure length. Use one of the conversion calculators below to convert to another unit of measure, or read on to learn more about meters.
Meter Conversion Calculators
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Meter Definition and Usage
The meter is defined as the length of the path traveled by light in vacuum during a time interval with a duration of 1/299,792,458 of a second, according to the most recent 2019 definition. One meter is equal to 100 centimeters or 39.37 inches.
The meter, or metre, is the SI base unit for length in the metric system. Meters can be abbreviated as m; for example, 1 meter can be written as 1 m.
Background and Origin
The meter was originally defined as 1/10,000,000 the distance from the equator to the North Pole. The original definition was adopted by the French in 1793.
Due to the irregularity of the Earth making this definition inaccurate and the difficulty in measuring the meter, the prototype metre bar was created as a reference dimension in the late 18th century. It was discovered that the original prototype bar was inaccurate, and was later recreated nearly 100 years later in the late 19th century.
It wasn't until 1983 that the meter was redefined in terms of the speed of light in a set time interval which replaced the use of the physical artifact to define its true length.
Meters Measurement Conversion Table
|1 m||0.000621 mi||1.093613 yd||3.28084'||39.370079"||0.001 km||100 cm||1,000 mm||1,000,000 µm||1,000,000,000 nm|
|2 m||0.001243 mi||2.187227 yd||6.56168'||78.740157"||0.002 km||200 cm||2,000 mm||2,000,000 µm||2,000,000,000 nm|
|3 m||0.001864 mi||3.28084 yd||9.84252'||118.110236"||0.003 km||300 cm||3,000 mm||3,000,000 µm||3,000,000,000 nm|
|4 m||0.002485 mi||4.374453 yd||13.12336'||157.480315"||0.004 km||400 cm||4,000 mm||4,000,000 µm||4,000,000,000 nm|
|5 m||0.003107 mi||5.468066 yd||16.404199'||196.850394"||0.005 km||500 cm||5,000 mm||5,000,000 µm||5,000,000,000 nm|
|6 m||0.003728 mi||6.56168 yd||19.685039'||236.220472"||0.006 km||600 cm||6,000 mm||6,000,000 µm||6,000,000,000 nm|
|7 m||0.00435 mi||7.655293 yd||22.965879'||275.590551"||0.007 km||700 cm||7,000 mm||7,000,000 µm||7,000,000,000 nm|
|8 m||0.004971 mi||8.748906 yd||26.246719'||314.96063"||0.008 km||800 cm||8,000 mm||8,000,000 µm||8,000,000,000 nm|
|9 m||0.005592 mi||9.84252 yd||29.527559'||354.330709"||0.009 km||900 cm||9,000 mm||9,000,000 µm||9,000,000,000 nm|
|10 m||0.006214 mi||10.936133 yd||32.808399'||393.700787"||0.01 km||1,000 cm||10,000 mm||10,000,000 µm||10,000,000,000 nm|
|11 m||0.006835 mi||12.029746 yd||36.089239'||433.070866"||0.011 km||1,100 cm||11,000 mm||11,000,000 µm||11,000,000,000 nm|
|12 m||0.007456 mi||13.12336 yd||39.370079'||472.440945"||0.012 km||1,200 cm||12,000 mm||12,000,000 µm||12,000,000,000 nm|
|13 m||0.008078 mi||14.216973 yd||42.650919'||511.811024"||0.013 km||1,300 cm||13,000 mm||13,000,000 µm||13,000,000,000 nm|
|14 m||0.008699 mi||15.310586 yd||45.931759'||551.181102"||0.014 km||1,400 cm||14,000 mm||14,000,000 µm||14,000,000,000 nm|
|15 m||0.009321 mi||16.404199 yd||49.212598'||590.551181"||0.015 km||1,500 cm||15,000 mm||15,000,000 µm||15,000,000,000 nm|
|16 m||0.009942 mi||17.497813 yd||52.493438'||629.92126"||0.016 km||1,600 cm||16,000 mm||16,000,000 µm||16,000,000,000 nm|
|17 m||0.010563 mi||18.591426 yd||55.774278'||669.291339"||0.017 km||1,700 cm||17,000 mm||17,000,000 µm||17,000,000,000 nm|
|18 m||0.011185 mi||19.685039 yd||59.055118'||708.661417"||0.018 km||1,800 cm||18,000 mm||18,000,000 µm||18,000,000,000 nm|
|19 m||0.011806 mi||20.778653 yd||62.335958'||748.031496"||0.019 km||1,900 cm||19,000 mm||19,000,000 µm||19,000,000,000 nm|
|20 m||0.012427 mi||21.872266 yd||65.616798'||787.401575"||0.02 km||2,000 cm||20,000 mm||20,000,000 µm||20,000,000,000 nm|
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- International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf