Conversion Factors

To convert current units into SI units, multiply by the conversion factor.
EX. 20in = 20 = 25.4 x 508 mm

To convert the SI units in common unit, divide by the conversion factor.
EX. 245 mm = 254 / 54.4 = 10 in.

Conversion formulas

temperature:
F = C (F-32) / 1.8
C F = (C x 1.8) + 32

COMMON UNITS CONVERSION FACTORS SI UNITS
VOLUME pi3
po3
gal (Can.)
gal (US)
0,028 317
0,016 387
4,546 09
3,785 412
m3
L
L
L
PRESSURE atm norm
(=760 torr)
lb/po2
torr
bar
101,325
6,894 757
133,322
100
kPa
kPa
Pa
kPa
MASS tonne (2000lb)
lb (avdp
oz (avdp)
970,184 74
0,453 592
28,349 523
kg
kg
g
WIDTH mille
pi
po
1,609 344
0,304 8
25,4
km
m
mm
SPEED pi/min
pi/s
5,08
0,304 8
mm/s
m/s