All Guides: Module 6: Units: Systems of Measurements

Systems of Measurements

All measurements are organized into systems, three of which you will most likely encounter. Examples of the unit types are shown for each system.

Prefix	Symbol	Equivalency to Base	Equivalency as a Power
Mega-	M	1 mega- = 1 000 000 base	${"version":"1.1","math":"10^6"}$
Kilo-	k	1 kilo- = 1000 base	${"version":"1.1","math":"10^3"}$
Hecto-	h	1 hecto- = 100 base	${"version":"1.1","math":"10^2"}$
Deca-	da	1 deca- = 10 base	${"version":"1.1","math":"10^1"}$
Base (No prefix)	—	—	${"version":"1.1","math":"10^0"}$
Deci-	D	1 base = 10 deci-	${"version":"1.1","math":"10^{-1}"}$
Centi-	C	1 base = 100 centi-	${"version":"1.1","math":"10^{-2}"}$
Milli-	M	1 base = 1000 milli-	${"version":"1.1","math":"10^{-3}"}$
Micro-	μ / mc	1 base = 1 000 000 micro-	${"version":"1.1","math":"10^{-6}"}$

Quantity

Unit

Abbreviation

Mass

Ounce

Pound

Ton

lbs

ton

Length

Inch

Feet

Yard

Mile

Capacity

Pint

Quart

Mile

gal