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APPENDIX I

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.

TEMPERATURE FORMULAS
Celsius (Centigrade)
5/9 Fahrenheit - 32
Fahrenheit
=
9/5 Celsius + 32
Kelvin
=
Celsius  - 273.15
Celsius
=
Kelvin +  273.15


Table 1.  Metric prefixes and corresponding mathematical factor

Prefix
Abbreviation
Factor

exa
E
1018
peta
P
1015
terra
T
1012
giga
G
109
mega
M
106
kilo
k
103
hecto
h
102
deka
da
101
deci
d
10-1
centi
c
10-2
milli
m
10-3
micro
µ
10-6
nano
n
10-9
pico
p
10-12
femto
f
10-15
atto
v
10-18


Table 2.  Useful Ratios

From

To

       Multiply By


Kg/m3

lb/ft3

               .062428

m3/tonne

ft3/ton (short)

           32.037

m3/ha

ft3/acre

           14.2913

joule/kg

BTU/LB

             0.0004296

LB/ft3

kg/m3

           16.0185

ft3/ton (short)

m3/tonne

             0.031214

ft3/acre

m3/ha

             0.0699725

BTU/LB

joule/kg

       2326

                        

 
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Last Updated 2/2/2012 6:37:21 PM