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Engineering Practices

Metric System and Unit
System SI.Unit M.K.S Unit F.P.S Unit
Length mm cm in
Area mm2 m2 cm2 m2 in2 ft2
Density Kg/m3 Kg/m3 Ib/Kg/ft3
Stress N/mm2 or MPa2 Kg/cm2 Ib/in2

Equivalent of Various System

Unit Symbol Value
Mega (M) 1,000,000=106
Kilo (K) 1,000=103
Micro (u) 0.000,001=10-6
Milli (m) 0.001=10-3
Centi (c) 0.01=10-2

Conversion Factors

Length 1 m 3.2808 ft
1 ft 0.304 m
304.8 mm
1 in 25.4 mm
2.54 cm
Area 1 m2 10.764 ft2
1 ft2 0.093m2
1 in2 645.16 mm2
1 katha 720 ft2
1 bigha 14.400 ft2
1 acre 4840 yd2
43.460 ft2
100 desimal
4047 m2
 
Mass 1 Ton(t) 2240 Lb
1000 Kg
1 Ib 0.454 Kg
1 Kg 2.204 Ib
1 Kip 0.454 ton
Force 1 kg-f 9.81 N
1 k-f 4.448 KN
1 Ib-f 4.448 N
1 N 0.2248 Ib-f
1 KN 0.2248 kip f
1 KN 101.94 Kg-f
Temparature ∇ 10 C ∇ 1.80 F
Force per unit area 1 Kg/m2 0.205 Ib/ft2
1 Ib/ft2 4.8882 Kg/m2
1 MPa 145.038 psi
1 ton/in2 1.575 Kg/m2
1 Kg/cm2 14.28 psi
1 Kg/mm2 0.635 ton/in2
1 Ib/ft2 47.88 N/m2
1 kip/ft2 47.88 KN/m3
1 KN/m2 20.88 Ib/ft2
Force per unit length 1 Ib/ft 14.59 N/m
1 KN/m 1.019 Kg/cm
1 KN/m 68.52 Ib/ft
1 kip/ft 14.88 Kg/cm
1 kip/ft 14.59 KN/m
1 Ib/ft 1.48 Kg/m
1 Ton/m 0.672 kip/ft
Desnsity 1 Ib/ft3 16.02 Kg/m3
1 KN/m3 6.36 Ib/ft3
Volume 1 cum 35.315 cft
1 cm3 0.061 in3
1 cft 0.0283 cum
Strength 1 ksi 0.690 KN/cm2
1 psi 0.00689 MPa
1 ksi 70.31 Kg/cm2
Velocity 1 Kmph 0.278 mps
0.62 miph

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