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 Customary to Metric
PRESSURE, STRESS, MODULUS OF ELASTICITY (FORCE PER UNIT AREA)
(1 Pa = 1 N/m2)
tonf/in2
1
=
13.7895
MPa
tonf/ft2
1
=
95.7605
kPa
kip/in2
1
=
6.894 76
MPa
lbf/in2
1
=
6.894 76
kPa
lbf/ft2
1
=
47.8803
Pa
Metric to Customary
WORK, ENERGY, HEAT (1 J = 1 N . m = 1 W . s)
1 MJ
= 0.277 778
kWh
1 kJ
= 0.947 817
Btu
1J
= 0.737 562
ft . lbf
Customary to Metric
WORK, ENERGY, HEAT (1 J = 1 N . m = 1 W . s)
1 kWh
=
3.6
MJ
1 Btu (Int. Table)
=
1.055 06
kJ
1 ft . lbf
=
1055.06
J
=
1.355 82
J
Metric to Customary
POWER, HEAT FLOW RATE
1 kW
= 1.341 02
hp (horsepower)
1W
= 3.412 14
Btu/h
= 0.737 562
ft . lbf/s
Customary to Metric
POWER, HEAT FLOW RATE
1 hp (550 ft . lbf/s)
=
0.745 700
kW
=
745.700
W
1 Btu/h
=
0.293 071
W
1 ft . lbf/s
=
1.355 82
W
Metric to Customary
HEAT FLUX DENSITY
1 W/m2
Btu/(ft2 . h)
= 0.316 998
W-8
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