CONVERSIONS
BETWEEN IMPERIAL AND METRIC MEASURES
To convert any item listed along the
left margin of a table to the item heading a column, multiply
by the factor at the intersection of the row and column. For example,
to convert 850 kg into lbs, the factor in Table 2 is 2.205, hence
the answer is 1,874 lbs.
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TEMPERATURE FORMULAS
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Celsius (Centigrade)
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=
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5/9 Fahrenheit - 32
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Fahrenheit
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=
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9/5 Celsius + 32
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Kelvin
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=
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Celsius - 273.15
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Celsius
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=
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Kelvin + 273.15
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Table 1. Metric prefixes and corresponding
mathematical factor
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|
|
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Prefix
|
Abbreviation
|
Factor
|
|
|
|
exa
|
E
|
1018
|
|
peta
|
P
|
1015
|
|
terra
|
T
|
1012
|
|
giga
|
G
|
109
|
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mega
|
M
|
106
|
|
kilo
|
k
|
103
|
|
hecto
|
h
|
102
|
|
deka
|
da
|
101
|
|
deci
|
d
|
10-1
|
|
centi
|
c
|
10-2
|
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milli
|
m
|
10-3
|
|
micro
|
µ
|
10-6
|
|
nano
|
n
|
10-9
|
|
pico
|
p
|
10-12
|
|
femto
|
f
|
10-15
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atto
|
v
|
10-18
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|
|
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Table 2. Useful Ratios
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|
From
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To
|
Multiply By
|
|
|
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Kg/m3
|
lb/ft3
|
.062428
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m3/tonne
|
ft3/ton
(short)
|
32.037
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|
m3/ha
|
ft3/acre
|
14.2913
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|
joule/kg
|
BTU/LB
|
0.0004296
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|
LB/ft3
|
kg/m3
|
16.0185
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|
ft3/ton
(short)
|
m3/tonne
|
0.031214
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ft3/acre
|
m3/ha
|
0.0699725
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|
BTU/LB
|
joule/kg
|
2326
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