Unit Conversion

Length Converter

Meters, centimeters, inches, feet, yards and miles — converted instantly.

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Conversion standard

Conversions follow international standard definitions. Results keep up to 10 significant digits; very large or very small values switch to scientific notation.

Quick conversion

Result

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Results follow international unit definitions — round them as needed for everyday use. For engineering or trade, apply the precision agreed in the contract.
UnitConverted value

The table below converts your input into every unit; the source unit row is highlighted.

How to use

Getting accurate length conversions

1

Metric runs in thousands

Metric units step by 1,000: 1 m = 100 cm = 1,000 mm, so switching units is just moving the decimal point.

2

Use the exact imperial definitions

Inches and feet are defined exactly: 1 inch = 25.4 mm and 1 foot = 12 inches = 0.3048 m — never an approximation.

3

Big distances, big units

Kilometers and miles suit travel: 1 km ≈ 0.621 mi, and a speed limit in mph is about 1.609 km/h per 1 mph.