I think the question here is: What exactly are you trying to measure? Is is temperature, distance, weight or volume? Each of these have a different measurement and depending on the country each has a different measurement system. I will be using the metric system for this answer:
Weight:
1000 grams = 1 kilo
1000 kilos = 1 ton
Distance:
10 mm = 1 cm
100 cm = 1 m
1000 m = 1 km
Temperature:
0°Celsius = 32 Fahrenheit OR 273.15 kelvin ( 0 Kelvin is used to describe absolute freezing temperature at which it is believed that molecules stop moving)
Volume:
100 ml = 1 centileter
10 centileters or 1000 ml = 1 liter
1000 liters = 1 kiloliter
Nothing, here is no such word a "volune".
30
The unit used to measure the volume of a regular solid object is cubic units (e.g., cubic meters, cubic centimeters, cubic inches). This unit represents the amount of space occupied by the object in three dimensions.
Mass/Volume = Density.
Piston ring gap.
You always use square units when measuring area.
You use conversion factors.
I use metric units, such as meters, kilograms, and liters for measurements.
You use the same units as for any other type of energy.You use the same units as for any other type of energy.You use the same units as for any other type of energy.You use the same units as for any other type of energy.
units with perimeter square units with area
The idea is to use an international standard - the same units everywhere.
Cubit units have not been in serious use for at least 1000 years!