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

10^{18}

peta

P

10^{15}

terra

T

10^{12}

giga

G

10^{9}

mega

M

10^{6}

kilo

k

10^{3}

hecto

h

10^{2}

deka

da

10^{1}

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/m^{3}

lb/ft^{3}

.062428

m^{3}/tonne

ft^{3}/ton
(short)

32.037

m^{3}/ha

ft^{3}/acre

14.2913

joule/kg

BTU/LB

0.0004296

LB/ft^{3}

kg/m^{3}

16.0185

ft^{3}/ton
(short)

m^{3}/tonne

0.031214

ft^{3}/acre

m^{3}/ha

0.0699725

BTU/LB

joule/kg

2326
