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http://www.simetric.co.uk/si_hij.htm |
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joules |
9.48E-04 |
Btu |
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joules |
10000000 |
ergs |
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joules |
0.7376 |
foot-pounds |
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joules |
0.0002389 |
kg-calories |
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joules |
0.102 |
kg-metres |
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joules |
0.0002778 |
watt-hrs |
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horsepower |
42.44 |
Btu/min |
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horsepower |
33000 |
foot-lbs/min |
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horsepower |
550 |
foot-lbs/sec |
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horsepower (metric) |
0.9863 |
horsepower |
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horsepower |
10.68 |
kg-calories/min |
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horsepower |
0.7457 |
kilowatts |
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horsepower (boiler) |
33479 |
Btu/hr |
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horsepower (boiler) |
9809.5 |
watts |
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horsepower (metric) |
735.4988 |
watts |
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horsepower (electric) |
746 |
watts |
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horsepower |
see tables |
cc and cu.in. (approx) |
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horsepower (UK) |
745.7 |
watts |
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horsepower (water) |
746.043 |
watts |
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horsepower-hrs |
2547 |
Btu |
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horsepower-hrs |
2.68E+13 |
ergs |
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horsepower-hrs |
1980000 |
foot-lbs |
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horsepower-hrs |
641190 |
gram-calories |
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horsepower-hrs |
2684000 |
joules |
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horsepower-hrs |
641.1 |
kg-calories |
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horsepower-hrs |
273700 |
kg-metres |
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horsepower-hrs |
0.7457 |
kilowatt-hrs |
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To obtain joules when watt-hours
are known, multiply by 3,600. To obtain watt-hours when joules are known,
multiply by 2.778 x 10 to the power of 4. |
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These units multiplied by ...... |
..this factor will... |
..convert to these units. |
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Btu |
1.06E+10 |
ergs |
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Btu |
778.3 |
foot-lbs |
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Btu |
252 |
gram-calories |
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Btu |
0.0003931 |
horsepower-hrs |
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Btu (39 ºF) |
1059.67 |
joules (J) |
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Btu (59 ºF) |
1054.8 |
joules |
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Btu (60 ºF) |
1054.68 |
joules |
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Btu (international table) |
1055.056 |
joules |
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Btu (thermochemical) |
1054.35 |
joules |
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Btu |
0.252 |
kilogram-calories |
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Btu |
107.5 |
kilogram-metres |
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Btu |
0.0002928 |
kilowatt-hrs |
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Btu /hr |
0.2162 |
foot-pounds/sec |
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Btu /hr |
0.07 |
gram-cal/sec |
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Btu /hr |
0.0003929 |
horsepower-hrs |
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Btu (int)/hr |
0.2930711 |
watts |
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Btu (thermo)/hr |
0.2928751 |
watts |
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Btu /min |
12.96 |
foot-lbs/sec |
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Btu /min |
0.02356 |
horsepower |
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Btu /min |
0.01757 |
kilowatts |
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Btu(thermo)/min |
17.5725 |
watts |
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Btu (int)/sec |
1055.056 |
watts |
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Btu (thermo)/sec |
1054.35 |
watts |
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Btu (thermo) /sq. ft. min |
189.1489 |
watts /sq. metre |
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Btu (int) /sq. ft. sec |
11356.53 |
watts /sq. metre |
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Btu (thermo) /sq. ft. sec |
11348.93 |
watts /sq. metre |
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Btu (thermo) /sq. in. sec |
1.63E+06 |
watts /sq. metre |
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Btu (int) ft./hr sq.ft. ºF |
1.730735 |
watt per metre kelvin |
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Btu (thermo) ft./hr sq.ft. ºF |
1.729577 |
watt per metre kelvin |
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Btu (int) in /hr sq.ft. ºF |
0.1442279 |
watt per metre kelvin |
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Btu (thermo) in./hr sq.ft. ºF |
0.1441314 |
watt per metre kelvin |
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Btu (int) in /sec sq.ft. ºF |
519.2204 |
watt per metre kelvin |
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Btu (thermo) in./hr sq.ft. ºF |
518.8732 |
watt per metre kelvin |
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Btu (int) per cu. ft. |
37258.95 |
joule per cu. metre |
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Btu (thermo) per cu. ft. |
37234.03 |
joule per cu. metre |
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Btu (int) per ºF |
1899.101 |
joule per kelvin |
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Btu (thermo) per ºF |
1897.83 |
joule per kelvin |
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Btu (int) per ºRankine |
1899.101 |
joule per kelvin |
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Btu (thermo) per ºR |
1897.83 |
joule per kelvin |
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Btu (int /cu.ft. ºF |
67066.07 |
joule per cu. metre kelvin |
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Btu (int) /hr sq.ft. ºF |
5.678263 |
watt per sq. metre kelvin |
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Btu (thermo) /hr sq.ft. ºF |
5.674466 |
watt per sq. metre kelvin |
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Btu (int) /sec sq.ft. ºF |
20441.75 |
watt per sq. metre kelvin |
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Btu (thermo) /sec sq.ft. ºF |
20428.08 |
watt per sq. metre kelvin |
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Btu (int) /lb |
2326 |
joule per kg. |
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Btu (thermo) /lb |
2324.444 |
joule per kg. |
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Btu (int) /lb |
0.64616 |
watts per kilogram |
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Btu (int) /lb |
0.55498 |
kilocalorie per kilogram |
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Btu (int) /lb. ºF |
4186.8 |
joul per kg kelvin |
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Btu (thermo) /lb. ºF |
4184 |
joul per kg kelvin |
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Btu (int) /lb. ºRankine |
4186.8 |
joul per kg kelvin |
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Btu (thermo) /lb. ºR |
4184 |
joul per kg kelvin |
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Btu (int) /sq. ft |
11356.53 |
joul per sq. metre |
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Btu (thermo) /sq. ft. |
11348.93 |
joul per sq. metre |
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Btu (int) /sq. ft. hr |
3.154591 |
watt per sq. metre |
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Btu (thermo) /sq. ft. hr |
3.152481 |
watt per sq. metre |
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calorie, gram (mean) |
0.00396832 |
Btu (mean) |
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ergs |
9.48E-11 |
Btu |
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ergs/sec |
5.69E-06 |
Btu/min |
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foot-pounds |
0.001286 |
Btu |
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foot-pounds/min |
0.001286 |
Btu/min |
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foot-pounds/sec |
4.6263 |
Btu/hr |
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foot-pounds/sec |
0.07717 |
Btu/min |
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gram-calories |
0.0039683 |
Btu |
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gram-calories/sec |
14.286 |
Btu/hr |
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gram-calories |
9.30E-08 |
Btu |
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horsepower |
42.44 |
Btu/min |
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horsepower (boiler) |
33479 |
Btu/hr |
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horsepower-hrs |
2547 |
Btu |
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joules |
9.48E-04 |
Btu |
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~~~~ |
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kilogram-calories |
3.968 |
Btu |
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kilogram-metres |
9.29E-03 |
Btu |
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kilowatts |
56.92 |
Btu/min |
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kilowatt-hrs |
3413 |
Btu |
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~~~~ |
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tons refrigeration |
12000 |
Btu per hour |
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watts |
3.4129 |
Btu/hr |
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watts |
0.05688 |
Btu/min |
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watts (absolute) |
0.056884 |
Btu (mean)/min |
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watt-hours |
3.413 |
Btu |
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These units multiplied by ...... |
..this factor will... |
..convert to these units |
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