SI Measurements: Metric Prefixes
Prefix |
Symbol |
Factor of Base Unit |
giga- |
G |
1
000 000 000 |
mega- |
M |
1 000 000 |
kilo- |
k |
1 000 |
hecto- |
h |
100 |
deka- |
da |
10 |
deci- |
d |
0.1 |
centi- |
c |
0.01 |
milli- |
m |
0.001 |
micro- |
m |
0.000 001 |
nano- |
n |
0.000 000 001 |
pico- |
p |
0.000 000 000 001 |
Nice visual display of Powers of Ten (a
view from outer space to the inside of an atom) viewed by powers of 10!
Mass
1 kilogram (kg)
= SI base unit of mass
1 gram
(g)
= 0.001 kg
1 milligram (mg)
= 0.000 001 kg
1 microgram (mg)
= 0.000 000 001 kg
Length
1 kilometer (km)
= 1 000 m
1 meter (m)
= SI base unit of mass
1 centimeter (cm) =
0.01 m
1 millimeter (mm)
= 0.001 m
1 microgram (mm)
= 0.000 001 m
1 nanometer (nm) = 0.000 000 001 m
1 picometer (pm) = 0.000 000 000 001 m
Area
1 square kilometer (km2)
= 100 hectacres (ha)
1 hectacre
(ha)
= 10 000 square meters (m2)
1 square meter (m2)
= 10 000 square centimeters (cm2)
1 square centimeter (cm2)
= 100 square millimeters (mm2)
Volume
1 liter (L)
= common unit for liquid volume (not SI)
1 cubic meter (m3) = 1000
L = 1 kiloliter (kL)
1 milliliter (mL)
= 0.001 L
= 1 cubic centimeter (cm3
or cc)
Reading a Vernier
(external link)
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