What is the standard SI base or derived unit for length?

In the International System of Units (SI), length is quantified relative to fundamental physical standards defined by BIPM. UnitGlide references these exact metric constants for all calculations.

How many length units can I convert on UnitGlide?

UnitGlide currently supports 92 different length units, including SI metric, British Imperial, US Customary, and scientific standard units.

How do I convert between different length units?

Enter your known value into the 'Convert from' field, choose your starting unit, and select your target unit. UnitGlide computes the answer instantly using 12-digit floating point arithmetic.

Length Converter

Convert length units including meter, kilometer, decimeter, centimeter, millimeter and many more length units instantly and accurately.

From

32.8084

10 meters (m) = 32.8084 feet (ft) · [32 ft 9 45/64 in]

Decimal places:

Formula:

ft = m × 3.280839895

Popular Length Conversions

Quick access to the most commonly used length conversions.

About Length Units

Free online length converter - converts between 93 units of length, including meter [m], kilometer [km], decimeter [dm], centimeter [cm], etc. Also, explore many other unit converters or learn more about length unit conversions. Different unit systems are used worldwide, including the Metric System (SI) and the Imperial / US Customary System.

Metric System (SI)

The metric system is the most widely adopted international measurement standard. The base unit is the meter.

Imperial System (US)

The imperial system is commonly used in the United States and specialized international industries including aviation and maritime navigation.

Common Length Units

Here are some of the most common length units and their abbreviations.

Unit	Symbol	Type	In Meter
Meter	m	Metric (base)	1 m
Kilometer	km	Metric	1000 m
Decimeter	dm	Metric	0.1 m
Centimeter	cm	Metric	0.01 m
Millimeter	mm	Metric	0.001 m
Micrometer	µm	Metric	0.000001 m
Nanometer	nm	Metric	0 m
Mile	mi, mi(Int)	Imperial	1609.344 m
Yard	yd	Imperial	0.9144 m
Foot	ft	Imperial	0.3048 m