which is the smallest unit of measurement?

m, cs, km?

If you mean cm, then --

100 cm = 1 m
1000 m = 1 km

Another way of looking at it --

1 centimeter (cm) is about the width of your little finger.

1 meter (m) is about the length of an adult's lower body -- from the floor to the waist.

1 kilometer (km) a little over one-half mile -- or the distance you can walk in 10 or 15 minutes.

thank you very much! your info was very helpful!

You're very welcome. :-)

The smallest unit of measurement depends on what you are measuring. In the context of distance or length, the smallest unit would be the millimeter (mm).

To determine the smallest unit of measurement, you typically need to understand the metric system. The metric system is a decimal-based system that uses prefixes to indicate different magnitudes. In this case, "m" stands for meter, "cs" might refer to centisemis, and "km" refers to kilometers.

The metric system follows a pattern where each prefix represents a multiple of ten. For example:
- Milli- (m) represents a thousandth (1/1000) of the base unit.
- Centi- (cs) represents a hundredth (1/100) of the base unit.
- Kilo- (km) represents a thousand (1000) times the base unit.

Given this information, the smallest unit of measurement would be millimeters (mm), as it represents a thousandth of a meter.