S1 UNITS
Where SI units differ from technical metric units, the conversions are given for both. The following list details the main Sl units and their symbols which are used throughout these tables. 

Length: metre m
Area: square metre m^2
Volume: cubic metre m^3
Mass: kilogram kg
Density: kilogram per cubic metre kg/m^3
Force: newton N
Pressure/stress: pascal Pa(Nlm^2)
Viscosity, dynamic: pascal second Pa s
Viscosity, kinematic: square metre per second m^2/s
Energy joule J
Power Watt W (J/S)

 

Volume, Capacity

1 m ^3 1.30795 yd^3 1 ml (cm^3)  0.0352 fl oz
1 dm ^3(litre) 0.03531 ft^3  1 yd^3 0.76455 m^ 3
0.21997 imp gal 1 ft^3  28.3168 dm^3
1.7605 pint 1 in^3  16.3871 cm^3
0.2642 US gal 1 Imp gal  4.45609 dm^7
1 cm^2 (ml) 0.06102 in^3 1 US gal  3.78541 dm^3
0.0352 fl oz 1 pint  0.56826 dm^3
1 litre (dm ^3) 0.21997 Imp gal 1 fl oz  28.4131 cm^3
1.7605 pint

Area

1 km^2(100 ha) 247.105 acres  1 mile^2  2.58999 km^2
1 hectare (ha) 2.47105 acres  1 acre 4046.86 m^2
10 000 m^2  0.404686 ha
1 m^2  1.19599 yd^2  1 yd^2  0.836127 m^2
1 cm^2  0.155 in^2  1 ft^2  0.092903 me^2
1 mm^2  0.00155 in^2  1 in^2  646.16 mm

Power

1hp (house power) 745.700 W (J/S)
1 ft/lbf/s 1.35582 W

  Temperature

° F  1.8 (°C) + 32
° C  (°F?32)/1.8
° K  °C+273.15

Density

1 kg/m^3 1.686 lb/yd^3
0.06243 Ib/ft^3 
g/cm^3  62.4280 Ib/ft^3
1 ton/yd^3  1328.94 kg/cm^3
1 lb/yd^3  0.593 kg/m ^3
1 lb/ft^3  16.0185 kglm^3
1 lb/in^3  27.6799 g/cm^3

Energy

1 MJ  0.277778 kWh
1J  0.737562 ft lbf
1 kgf m  9.80665 J
7.23301 ft lbf
1 therm  105.506 MJ
1 KWH  3.6 MJ
1 BTU (British Thermal Unit)
1 .05506 kJ

Viscosity, Dynamic

1 Pa s (Ns/m^2)  0.0208854 lb/ft^2
1 cP (centipoise) 2.08854 x 10
lbfs/ft^2 - 0.001 Pa s
1 Ibf s/ft^2 17.8803 Pa s
1 lb/ft s  1488.16 cP
1.48816 kg/ms

  Viscosity, Kinematic

1 m^2s  10.7639 ft^2/s
1 cSt (centistokes)  5.58001 in^2/S
1 mm^2/S
10 m^2/s
1 ft^2/h  0.092903 m^2/h
25.8064 cSt

Length

1 km 0.621371 mile 1 mile 1.60934 km
1 m 1.09361 yd 1 yd  0.9144 m
3.2808 ft 1 ft  .3048 m
1 cm 0.393701 in 1 in  25.4 mm
1 mm 0.03937 in 1 milli-in  25.4pm
1 pm 39.3701 pin 1 pin  0.0254 pm

Mass

1 tonne 1000 kg
0.98420 ton
2204.62 lb
1 kg  0.01968 cwt
2.2 0462 lb
1 g  0.03527 oz
1 ton 1016.05 kg
1.01605 tonne
1 cwt  50.8023 kg
1 lb  0.45359 kg
1 oz  28.349 6

Force

1 N  0.10197 kgf
0.22481 Ibf
1 kN  101.971 kgf
224.809 Ibf
1 kgf (kilopond)  9.80665 N
2.20462 Ibf
1 dyne  105 N
0.224809 X 16^5 lbf
1 Ibf  4.44822 N
0.45359 kgf
1 tonf  9.96402 kN
1016.05 kgf

Pressure/Stress

1 Mpa (N/m ^2) 0.01 mbar
0.000145 Ibf/in^2
1 KPa (kN/m^2) 0.01 kgf/cm^2
10 mbar
20.885 lbf/ft^2
0.2953 in Hg
98.665 Kpa
1 kgf/cm^2  14.223 lbf/in^2
100 Kpa
1 bar  14.5038 Ibf/in^2
100 Pa
1 mbar  2.0885 lbf/in^2
101.325 Kpa
1 atm  14.6959 lbf/in^2
133.322 Pa
1 mm Hg (torr)  0.01934 lbf/in^2
9.50665 Pa
1 mm H20  0.001422 lbf/in^2
6.89476 Kpa
1 lbf/in^2  0.07031 kgf/cm^2
68.9476 mbar
47.8803 Pa
1 Ibf/ft^2  0.4788 mbar
107.252 Kpa
1 ton/ft^2  .094 kgf/CM^2
3.38639 KPa
1 in Hg  0.491 lbf/in^2
2.98907 Kpa
1 ft H20 0.030 kgflcm
22.3997 mm Hg

 

 
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