Units of Measurement
Scientific measurements are typically done using metric units. This is a decimal system where conversion from one metric unit to another is simply done by moving a decimal. Units of measurement for the metric system are given below.
Parameter Unit
Length Meter
Volume Liter
Mass Gram

Each of these units may have one of the prefixes added below. For example, a kilometer is 1000 meters.
Prefix
Symbol
Power of 10
Ordinary Notation
U.S. Name
mega
M
6
1 000 000
million
kilo
k
3
1 000
thousand
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0
1
one
centi
c
-2
0.01
hundredth
milli
m
-3
0.001
thousandth
micro
µ
-6
0.000 001
millionth
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