Length unit converter
More length conversions
Meter to CentimeterMeter to MillimeterMeter to KilometerMeter to InchMeter to FootMeter to YardMeter to MileCentimeter to MeterCentimeter to MillimeterCentimeter to KilometerCentimeter to InchCentimeter to FootCentimeter to YardCentimeter to MileMillimeter to MeterMillimeter to CentimeterMillimeter to KilometerMillimeter to InchMillimeter to FootMillimeter to YardMillimeter to MileKilometer to MeterKilometer to CentimeterKilometer to MillimeterKilometer to InchKilometer to FootKilometer to YardKilometer to MileInch to MeterInch to CentimeterInch to MillimeterInch to KilometerInch to FootInch to YardInch to MileFoot to MeterFoot to CentimeterFoot to MillimeterFoot to KilometerFoot to InchFoot to YardFoot to MileYard to MeterYard to CentimeterYard to MillimeterYard to KilometerYard to InchYard to FootYard to MileMile to MeterMile to CentimeterMile to MillimeterMile to KilometerMile to InchMile to FootMile to Yard
History of length
Length has been one of the most essential and earliest units of measurement in human civilization. From ancient cubits based on the forearm to the globally standardized meter, people have always needed to measure distances — for land, construction, trade, and navigation. The metric system, with units like millimeters, centimeters, and kilometers, was officially introduced during the French Revolution, aiming to simplify conversions with its base-10 design. Meanwhile, the imperial system — using inches, feet, yards, and miles — has roots in Roman and Anglo-Saxon traditions and is still commonly used in the United States today. Accurate length conversion is crucial in everything from science and engineering to travel and everyday DIY tasks.