The meter is used to measure length.
The metric unit of length is the 'meter'.
meter
the units that are used to measure a foot are meters and inches.
there are many unit which measure volume .SI units that measure volume is cubic meter .
The meter.
The meter.
meter
meter
a meter
You can not compare the two, a gram is a weight measurement and a meter is a length measurement.
The meter is the standard SI unit of length. ( kilometers when longer distances are talked about )