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Length Converter

Convert between metric and imperial length units

Quick Conversions

Millimeter to Centimeter Millimeter to Meter Millimeter to Kilometer Millimeter to Inch Millimeter to Foot Millimeter to Yard Millimeter to Mile Millimeter to Nautical Mile Centimeter to Millimeter Centimeter to Meter Centimeter to Kilometer Centimeter to Inch Centimeter to Foot Centimeter to Yard Centimeter to Mile Centimeter to Nautical Mile Meter to Millimeter Meter to Centimeter Meter to Kilometer Meter to Inch Meter to Foot Meter to Yard Meter to Mile Meter to Nautical Mile Kilometer to Millimeter Kilometer to Centimeter Kilometer to Meter Kilometer to Inch Kilometer to Foot Kilometer to Yard Kilometer to Mile Kilometer to Nautical Mile Inch to Millimeter Inch to Centimeter Inch to Meter Inch to Kilometer Inch to Foot Inch to Yard Inch to Mile Inch to Nautical Mile Foot to Millimeter Foot to Centimeter Foot to Meter Foot to Kilometer Foot to Inch Foot to Yard Foot to Mile Foot to Nautical Mile Yard to Millimeter Yard to Centimeter Yard to Meter Yard to Kilometer Yard to Inch Yard to Foot Yard to Mile Yard to Nautical Mile Mile to Millimeter Mile to Centimeter Mile to Meter Mile to Kilometer Mile to Inch Mile to Foot Mile to Yard Mile to Nautical Mile Nautical Mile to Millimeter Nautical Mile to Centimeter Nautical Mile to Meter Nautical Mile to Kilometer Nautical Mile to Inch Nautical Mile to Foot Nautical Mile to Yard Nautical Mile to Mile

About Length Conversion

Length is one of the most fundamental physical measurements, used in everything from construction and engineering to everyday tasks like measuring furniture or calculating travel distances. The metric system (millimeters, centimeters, meters, kilometers) is used worldwide for scientific and most practical purposes, while the imperial system (inches, feet, yards, miles) remains prevalent in the United States and a few other countries.

Our length converter handles all common metric and imperial units with high precision. Whether you need to convert building measurements from feet to meters, translate a road distance from miles to kilometers, or work with nautical miles for maritime navigation, this tool provides instant, accurate results.

The base unit for length in the International System of Units (SI) is the meter, originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole, and now defined by the speed of light in a vacuum.