Unit conversion
Appendix
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13-1
Unit conversion
This manual employs SI system for units. Conversion factors between the SI system and other
systems are as follows:
(1) Length
SI system
m
Unit
ft.
in.
Factor
0.3048
0.0254
Unit
ft.
in.
Factor
3.281
39.37
SI system
m
(2) Linear speed
SI system
m/s
Unit
m/min
ft./min
ft./s
in/s
Factor
0.0167 5.08 x 10
-3
0.3048 0.0254
Unit
m/min
ft./min
ft./s
in/s
Factor
60
196.9
3.281
39.37
SI system
m/s
(3) Linear acceleration
SI system
m/s
2
Unit
m/min
2
ft./min
2
ft./s
2
in/s
2
Factor
2.78 x
10
-4
8.47 x 10
-5
0.3048 0.0254
Unit
m/min
2
ft./min
2
ft./s
2
in/s
2
Factor
3600 1.18 x 10
4
3.281
39.37
SI system
m/s
2
(4) Force
SI system
N
Unit
kgf
lb (force)
oz (force)
Factor
9.81
4.45
0.278
Unit
kgf
lb (force)
oz (force)
Factor
0.102
0.225
4.386
SI system
N
(5) Mass
SI system
kg
Unit
lb.
oz.
Factor
0.4535
0.02835
Unit
lb.
oz.
Factor
2.205
35.27
SI system
kg
(6) Angle
SI system
rad
Unit
Degree
Min.
Sec.
Factor
0.01755
2.93 x 10
-4
4.88 x 10
-6
Unit
Degree
Min.
Sec.
Factor
57.3
3.44 x 10
3
2.06 x 10
5
SI system
rad
(7) Angular speed
SI system
rad/s
Unit
deg/s
deg/min
r/s
r/min
Factor
0.01755 2.93 x 10
-4
6.28
0.1047
Unit
deg/s
deg/min
r/s
r/min
Factor
57.3
3.44 x 10
3
0.1592
9.55
SI system
rad/s
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