Note: Fractional results are rounded to the nearest 1/64. For a more accurate answer please select 'decimal' from the options above the result.
Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.
Note: For a pure decimal result please select 'decimal' from the options above the result.
One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere. The Btu (mean) uses a result averaged over water temperatures 0 to 100 °C (32.0 to 212.0 °F) which is approx. 1055.87 J
One Kilojoule is 1,000 Newton Metre, ie the work done or energy transfered to an object when a 1,000 Newton force acts on it over one metre. It can also be defined as the heat energy dissipated by a current of 1,000 amperes passing through a one Ohm resistor for one second
| -20.000Btu (mean) | -21.117kJ |
| -19.000Btu (mean) | -20.062kJ |
| -18.000Btu (mean) | -19.006kJ |
| -17.000Btu (mean) | -17.950kJ |
| -16.000Btu (mean) | -16.894kJ |
| -15.000Btu (mean) | -15.838kJ |
| -14.000Btu (mean) | -14.782kJ |
| -13.000Btu (mean) | -13.726kJ |
| -12.000Btu (mean) | -12.670kJ |
| -11.000Btu (mean) | -11.615kJ |
| -10.000Btu (mean) | -10.559kJ |
| -9.0000Btu (mean) | -9.5028kJ |
| -8.0000Btu (mean) | -8.4470kJ |
| -7.0000Btu (mean) | -7.3911kJ |
| -6.0000Btu (mean) | -6.3352kJ |
| -5.0000Btu (mean) | -5.2793kJ |
| -4.0000Btu (mean) | -4.2235kJ |
| -3.0000Btu (mean) | -3.1676kJ |
| -2.0000Btu (mean) | -2.1117kJ |
| -1.0000Btu (mean) | -1.0559kJ |
| Btu (mean) | Kilojoules |
|---|---|
| 0.0000Btu (mean) | 0.0000kJ |
| 1.0000Btu (mean) | 1.0559kJ |
| 2.0000Btu (mean) | 2.1117kJ |
| 3.0000Btu (mean) | 3.1676kJ |
| 4.0000Btu (mean) | 4.2235kJ |
| 5.0000Btu (mean) | 5.2793kJ |
| 6.0000Btu (mean) | 6.3352kJ |
| 7.0000Btu (mean) | 7.3911kJ |
| 8.0000Btu (mean) | 8.4470kJ |
| 9.0000Btu (mean) | 9.5028kJ |
| 10.000Btu (mean) | 10.559kJ |
| 11.000Btu (mean) | 11.615kJ |
| 12.000Btu (mean) | 12.670kJ |
| 13.000Btu (mean) | 13.726kJ |
| 14.000Btu (mean) | 14.782kJ |
| 15.000Btu (mean) | 15.838kJ |
| 16.000Btu (mean) | 16.894kJ |
| 17.000Btu (mean) | 17.950kJ |
| 18.000Btu (mean) | 19.006kJ |
| 19.000Btu (mean) | 20.062kJ |
| Btu (mean) | Kilojoules |
|---|---|
| 20.000Btu (mean) | 21.117kJ |
| 21.000Btu (mean) | 22.173kJ |
| 22.000Btu (mean) | 23.229kJ |
| 23.000Btu (mean) | 24.285kJ |
| 24.000Btu (mean) | 25.341kJ |
| 25.000Btu (mean) | 26.397kJ |
| 26.000Btu (mean) | 27.453kJ |
| 27.000Btu (mean) | 28.508kJ |
| 28.000Btu (mean) | 29.564kJ |
| 29.000Btu (mean) | 30.620kJ |
| 30.000Btu (mean) | 31.676kJ |
| 31.000Btu (mean) | 32.732kJ |
| 32.000Btu (mean) | 33.788kJ |
| 33.000Btu (mean) | 34.844kJ |
| 34.000Btu (mean) | 35.900kJ |
| 35.000Btu (mean) | 36.955kJ |
| 36.000Btu (mean) | 38.011kJ |
| 37.000Btu (mean) | 39.067kJ |
| 38.000Btu (mean) | 40.123kJ |
| 39.000Btu (mean) | 41.179kJ |
| Btu (mean) | Kilojoules |
|---|---|
| 40.000Btu (mean) | 42.235kJ |
| 41.000Btu (mean) | 43.291kJ |
| 42.000Btu (mean) | 44.347kJ |
| 43.000Btu (mean) | 45.402kJ |
| 44.000Btu (mean) | 46.458kJ |
| 45.000Btu (mean) | 47.514kJ |
| 46.000Btu (mean) | 48.570kJ |
| 47.000Btu (mean) | 49.626kJ |
| 48.000Btu (mean) | 50.682kJ |
| 49.000Btu (mean) | 51.738kJ |
| 50.000Btu (mean) | 52.793kJ |
| 51.000Btu (mean) | 53.849kJ |
| 52.000Btu (mean) | 54.905kJ |
| 53.000Btu (mean) | 55.961kJ |
| 54.000Btu (mean) | 57.017kJ |
| 55.000Btu (mean) | 58.073kJ |
| 56.000Btu (mean) | 59.129kJ |
| 57.000Btu (mean) | 60.185kJ |
| 58.000Btu (mean) | 61.240kJ |
| 59.000Btu (mean) | 62.296kJ |
| 60.000Btu (mean) | 63.352kJ |
| 61.000Btu (mean) | 64.408kJ |
| 62.000Btu (mean) | 65.464kJ |
| 63.000Btu (mean) | 66.520kJ |
| 64.000Btu (mean) | 67.576kJ |
| 65.000Btu (mean) | 68.632kJ |
| 66.000Btu (mean) | 69.687kJ |
| 67.000Btu (mean) | 70.743kJ |
| 68.000Btu (mean) | 71.799kJ |
| 69.000Btu (mean) | 72.855kJ |
| 70.000Btu (mean) | 73.911kJ |
| 71.000Btu (mean) | 74.967kJ |
| 72.000Btu (mean) | 76.023kJ |
| 73.000Btu (mean) | 77.079kJ |
| 74.000Btu (mean) | 78.134kJ |
| 75.000Btu (mean) | 79.190kJ |
| 76.000Btu (mean) | 80.246kJ |
| 77.000Btu (mean) | 81.302kJ |
| 78.000Btu (mean) | 82.358kJ |
| 79.000Btu (mean) | 83.414kJ |