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Unit conversions
General unit conversions
Description
Length
Area
Volume
SI unit
1m
1m
1m
1 m2
1 m2
1 m2
1 m3
1 m3
1 m3
US equivalent
39.370 in
3.2808 ft
6.2139 · 10−4 miles
1550.0 in2
10.764 ft2
2.4710 · 10−4 acre2
61024 in3
35.314 ft3
264.17 US gallon
Unit conversions for stress analysis
Description
Energy
Force
Pressure/stress
SI unit
1 J (Nm)
1N
1 N/m2
US equivalent
0.73757 ft lbf
0.22481 lbf
1.4504 · 10−4 psi (lbf/in2 )
Consistent units
Description
Length
Force
Mass
Time
Stress
Energy
Density
SI
m
N
kg
s
Pa (N/m2 )
J
kg/m3
SI [mm]
mm
N
tonne (103 kg)
s
MPa (N/mm2 )
mJ (10−3 J)
tonne/mm3
US unit [ft]
ft
lbf
slug
s
lbf/ft2
ft lbf
slug/ft3
ii
US unit [inch]
in
lbf
lbf s2 /in
s
psi (lbf/in2 )
in lbf
lbf s2 /in4