BASE UNIT
meter - LENGTH use the symbol - m

Derived Unit
liter - VOLUME use the symbol - L

BASE UNIT
kilogram - MASS  use the symbol - kg

•
Convenient prefix attached in front of
base or derived unit, or unit of measure
shows quantity, size or value by 10, 100 and 1000.
•
WRITING IS EASY!
Symbols like mL or mg or mm or kg or cm together
identify prefix and base or derived unit
or unit of measure.

For most everyday experience useful prefixes
are
milli 1 one thousandth (0.001)
from the unit of measure.
•
centi 1 one hundredth (0.01)
from the unit of measure.
•
kilo 1000 times as much as
the of the unit of measure.
•

1 cmณ
(1 cubic centimeter)

filled with water contains exactly 1 mL
(1 milliliter)