The same as instruments to measure lengths in any other system: rulers, tape measures, range finders, and so on.
there are many instruments used to measure length depending upon the size of object , Ruler is Metric instrument used to measure length. Screw gauge is also used as an instrument used to measure length in mm.
A ruler or a metric tape measure is commonly used to measure length in the metric system. These instruments typically have units of centimeters or millimeters for more precise measurements.
meter stick
The metric unit of length is the 'meter'.
A ruler or tape measure can be used to measure length, width, and height of objects accurately. These tools are commonly found in households and offices for various measuring tasks.
there are many instruments used to measure length . measuring tape is used to measure the length of room.
Metres
metre
the ruler The meter stick
meter
Centimeters.
meter