88
SI* METRIC INFORMATION
* The international system of units abbreviates SI in all languages.
➀ To obtain the reverse sequence, divide by the given factor. Example: to convert
millimeters to inches, divide by 25.4.
NOTE: Conversion factors are rounded off to 2 decimals for easier use.
BASE UNITS
DESCRIPTION
length ..................................................
mass....................................................
force ....................................................
liquid....................................................
temperature.........................................
pressure ..............................................
torque..................................................
land velocity.........................................
navigation velocity...............................
UNIT
meter..................................
kilogram..............................
newton ...............................
liter .....................................
Celsius................................
kilopascal ............................
newton-meter.....................
kilometer per hour ..............
knot ....................................
SYMBOL
m
kg
N
L
°C
kPa
N•m
km/h
kn
PREFIXES
PREFIX
kilo.......................
centi ....................
milli......................
micro ...................
SYMBOL
k.........................
c.........................
m .......................
µ.........................
MEANING
one thousand......................
one hundredth of................
one thousandth of ..............
one millionth of...................
VALUE
1000
0.01
0.001
0.000001
CONVERSION FACTORS
TO CONVERT
in .........................................................
in .........................................................
in² ........................................................
in³ ........................................................
ft..........................................................
oz.........................................................
lb .........................................................
lbf ........................................................
lbf•in ...................................................
lbf•ft ....................................................
lbf•ft ....................................................
PSI.......................................................
imp. oz.................................................
imp. oz.................................................
imp. gal................................................
imp. gal................................................
U.S. oz.................................................
U.S. gal................................................
U.S. quart ............................................
knot .....................................................
MPH ....................................................
Fahrenheit ...........................................
Celsius.................................................
hp ........................................................
TO ➀
mm .....................................
cm ......................................
cm² .....................................
cm³ .....................................
m ........................................
g .........................................
kg........................................
N.........................................
N•m....................................
N•m....................................
lbf•in ..................................
kPa......................................
U.S. oz ................................
mL ......................................
U.S. gal ...............................
L .........................................
mL ......................................
L .........................................
L .........................................
MPH ...................................
km/h ...................................
Celsius................................
Fahrenheit ..........................
kW ......................................
MULTIPLY BY
25.4
2.54
6.45
16.39
0.3
28.35
0.45
4.4
0.11
1.36
12
6.89
0.96
28.41
1.2
4.55
29.57
3.79
0.95
1.15
1.61
(°F - 32) ÷ 1.8
(°C x 1.8) + 32
.75
SI* METRIC INFORMATION
smo2002-003_a.book Page 88 Friday, October 12, 2001 2:04 PM
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