The SI unit for length is the metre.
meter
The SI standard unit for length is the meter. In other countries this is sometimes written as metre.
There is not a standard SI unit for volume because it is the same as the SI unit for length.
he standard unit of length in the metric system is the meter
meters
the metre
Well the SI unit of length is the meter, and SI is the first standard measurement system...
metre
Meter, you fool
Metre.
SI stands for International System and is just the standard of units which are to be used when measuring. For example, the standard unit for mass is Kg and for length is m.
The meter is the standard unit of measurement for length in the SI system.
Its based on the speed of light.