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 BTU (IT) was defined by the Fifth International Conference on the Properties of Steam to be exactly 4.1868 J
| Btu (mean) | Btu (I.T.) |
|---|---|
| 0Btu (mean) | 0.00Btu (I.T.) |
| 1Btu (mean) | 1.00Btu (I.T.) |
| 2Btu (mean) | 2.00Btu (I.T.) |
| 3Btu (mean) | 3.00Btu (I.T.) |
| 4Btu (mean) | 4.00Btu (I.T.) |
| 5Btu (mean) | 5.00Btu (I.T.) |
| 6Btu (mean) | 6.00Btu (I.T.) |
| 7Btu (mean) | 7.01Btu (I.T.) |
| 8Btu (mean) | 8.01Btu (I.T.) |
| 9Btu (mean) | 9.01Btu (I.T.) |
| 10Btu (mean) | 10.01Btu (I.T.) |
| 11Btu (mean) | 11.01Btu (I.T.) |
| 12Btu (mean) | 12.01Btu (I.T.) |
| 13Btu (mean) | 13.01Btu (I.T.) |
| 14Btu (mean) | 14.01Btu (I.T.) |
| 15Btu (mean) | 15.01Btu (I.T.) |
| 16Btu (mean) | 16.01Btu (I.T.) |
| 17Btu (mean) | 17.01Btu (I.T.) |
| 18Btu (mean) | 18.01Btu (I.T.) |
| 19Btu (mean) | 19.01Btu (I.T.) |
| Btu (mean) | Btu (I.T.) |
|---|---|
| 20Btu (mean) | 20.02Btu (I.T.) |
| 21Btu (mean) | 21.02Btu (I.T.) |
| 22Btu (mean) | 22.02Btu (I.T.) |
| 23Btu (mean) | 23.02Btu (I.T.) |
| 24Btu (mean) | 24.02Btu (I.T.) |
| 25Btu (mean) | 25.02Btu (I.T.) |
| 26Btu (mean) | 26.02Btu (I.T.) |
| 27Btu (mean) | 27.02Btu (I.T.) |
| 28Btu (mean) | 28.02Btu (I.T.) |
| 29Btu (mean) | 29.02Btu (I.T.) |
| 30Btu (mean) | 30.02Btu (I.T.) |
| 31Btu (mean) | 31.02Btu (I.T.) |
| 32Btu (mean) | 32.02Btu (I.T.) |
| 33Btu (mean) | 33.03Btu (I.T.) |
| 34Btu (mean) | 34.03Btu (I.T.) |
| 35Btu (mean) | 35.03Btu (I.T.) |
| 36Btu (mean) | 36.03Btu (I.T.) |
| 37Btu (mean) | 37.03Btu (I.T.) |
| 38Btu (mean) | 38.03Btu (I.T.) |
| 39Btu (mean) | 39.03Btu (I.T.) |
| Btu (mean) | Btu (I.T.) |
|---|---|
| 40Btu (mean) | 40.03Btu (I.T.) |
| 41Btu (mean) | 41.03Btu (I.T.) |
| 42Btu (mean) | 42.03Btu (I.T.) |
| 43Btu (mean) | 43.03Btu (I.T.) |
| 44Btu (mean) | 44.03Btu (I.T.) |
| 45Btu (mean) | 45.03Btu (I.T.) |
| 46Btu (mean) | 46.04Btu (I.T.) |
| 47Btu (mean) | 47.04Btu (I.T.) |
| 48Btu (mean) | 48.04Btu (I.T.) |
| 49Btu (mean) | 49.04Btu (I.T.) |
| 50Btu (mean) | 50.04Btu (I.T.) |
| 51Btu (mean) | 51.04Btu (I.T.) |
| 52Btu (mean) | 52.04Btu (I.T.) |
| 53Btu (mean) | 53.04Btu (I.T.) |
| 54Btu (mean) | 54.04Btu (I.T.) |
| 55Btu (mean) | 55.04Btu (I.T.) |
| 56Btu (mean) | 56.04Btu (I.T.) |
| 57Btu (mean) | 57.04Btu (I.T.) |
| 58Btu (mean) | 58.04Btu (I.T.) |
| 59Btu (mean) | 59.05Btu (I.T.) |