Length Converter
Length Conversion Formulas
1 Kilometer (km) = 1,000 Meter (m)
1 Centimeter (cm) = 0.01 Meter (m)
1 Millimeter (mm) = 0.001 Meter (m)
1 Micrometer (µm) = 0.000001 Meter (m)
1 Nanometer (nm) = 0.000000001 Meter (m)
1 Mile (mi) = 1,609.34400000000005 Meter (m)
1 Yard (yd) = 0.9144 Meter (m)
1 Foot (ft) = 0.3048 Meter (m)
1 Inch (in) = 0.0254 Meter (m)
1 Light Year (ly) = 9,461,000,000,000,000 Meter (m)
Meter (m)
Definition: The meter is defined as the length of the path traveled by light in vacuum during a time interval of 1/299,792,458 of a second.
History/origin: Originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole. Redefined in 1983 in terms of the speed of light.
Current use: The meter is used worldwide for scientific, engineering, and everyday measurements.
Kilometer (km)
Definition: Kilometer (km) is a metric prefix multiple of the Meter (m). 1 km = 1,000 m.
History/origin: The prefix "km" was adopted as part of the metric system to denote multiples and submultiples of base units.
Current use: It is widely used in countries that have adopted the metric system.
Centimeter (cm)
Definition: Centimeter (cm) is a metric prefix submultiple of the Meter (m). 1 m = 100 cm.
History/origin: The prefix "cm" was adopted as part of the metric system to denote multiples and submultiples of base units.
Current use: It is widely used in countries that have adopted the metric system.
Millimeter (mm)
Definition: Millimeter (mm) is a metric prefix submultiple of the Meter (m). 1 m = 1,000 mm.
History/origin: The prefix "mm" was adopted as part of the metric system to denote multiples and submultiples of base units.
Current use: It is widely used in countries that have adopted the metric system.
Micrometer (µm)
Definition: Micrometer (µm) is a metric prefix submultiple of the Meter (m). 1 m = 1,000,000 µm.
History/origin: The prefix "µm" was adopted as part of the metric system to denote multiples and submultiples of base units.
Current use: It is widely used in countries that have adopted the metric system.
Nanometer (nm)
Definition: Nanometer (nm) is a metric prefix submultiple of the Meter (m). 1 m = 999,999,999.9999999 nm.
History/origin: The prefix "nm" was adopted as part of the metric system to denote multiples and submultiples of base units.
Current use: It is widely used in countries that have adopted the metric system.
Mile (mi)
Definition: Mile (mi) is a unit of Length. 1 mi = 1,609.344 m
History/origin: The mile has been historically used in the imperial and US customary measurement systems.
Current use: It is primarily used in the United States and a few other countries.
Yard (yd)
Definition: Yard (yd) is a unit of Length. 1 yd = 0.9144 m
History/origin: The yard has been historically used in the imperial and US customary measurement systems.
Current use: It is primarily used in the United States and a few other countries.
Foot (ft)
Definition: Foot (ft) is a unit of Length. 1 ft = 0.3048 m
History/origin: The foot has been historically used in the imperial and US customary measurement systems.
Current use: It is primarily used in the United States and a few other countries.
Inch (in)
Definition: Inch (in) is a unit of Length. 1 in = 0.0254 m
History/origin: The inch has been historically used in the imperial and US customary measurement systems.
Current use: It is primarily used in the United States and a few other countries.
Light Year (ly)
Definition: Light Year (ly) is a unit of Length. 1 ly = 9,461,000,000,000,000 m
History/origin: The light year is used in various scientific and engineering applications.
Current use: It is commonly used in various fields including science, engineering, and everyday measurements.