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The thermochemical calorie was defined in 1930 by Frederick Rossini as 4.1833 joules. The change to absolute electrical units in 1948 involved redefining the thermochemical calorie as 4.184 joules (in order to keep the same quantity of energy represented by it). The thermochemical kilogram calorie is equal to 1,000 times that value - 4,184 J.
One Btu (I.T., pre-1956) equates to 1055.04 J
| Calories (Kilogram,thermoc.) | Btu (I.T., pre-1956) |
|---|---|
| 0Calorie (Kilogram,thermoc.) | 0.00Btu (I.T., pre-1956) |
| 1Calorie (Kilogram,thermoc.) | 3.97Btu (I.T., pre-1956) |
| 2Calorie (Kilogram,thermoc.) | 7.93Btu (I.T., pre-1956) |
| 3Calorie (Kilogram,thermoc.) | 11.90Btu (I.T., pre-1956) |
| 4Calorie (Kilogram,thermoc.) | 15.86Btu (I.T., pre-1956) |
| 5Calorie (Kilogram,thermoc.) | 19.83Btu (I.T., pre-1956) |
| 6Calorie (Kilogram,thermoc.) | 23.79Btu (I.T., pre-1956) |
| 7Calorie (Kilogram,thermoc.) | 27.76Btu (I.T., pre-1956) |
| 8Calorie (Kilogram,thermoc.) | 31.73Btu (I.T., pre-1956) |
| 9Calorie (Kilogram,thermoc.) | 35.69Btu (I.T., pre-1956) |
| 10Calorie (Kilogram,thermoc.) | 39.66Btu (I.T., pre-1956) |
| 11Calorie (Kilogram,thermoc.) | 43.62Btu (I.T., pre-1956) |
| 12Calorie (Kilogram,thermoc.) | 47.59Btu (I.T., pre-1956) |
| 13Calorie (Kilogram,thermoc.) | 51.55Btu (I.T., pre-1956) |
| 14Calorie (Kilogram,thermoc.) | 55.52Btu (I.T., pre-1956) |
| 15Calorie (Kilogram,thermoc.) | 59.49Btu (I.T., pre-1956) |
| 16Calorie (Kilogram,thermoc.) | 63.45Btu (I.T., pre-1956) |
| 17Calorie (Kilogram,thermoc.) | 67.42Btu (I.T., pre-1956) |
| 18Calorie (Kilogram,thermoc.) | 71.38Btu (I.T., pre-1956) |
| 19Calorie (Kilogram,thermoc.) | 75.35Btu (I.T., pre-1956) |
| Calories (Kilogram,thermoc.) | Btu (I.T., pre-1956) |
|---|---|
| 20Calorie (Kilogram,thermoc.) | 79.31Btu (I.T., pre-1956) |
| 21Calorie (Kilogram,thermoc.) | 83.28Btu (I.T., pre-1956) |
| 22Calorie (Kilogram,thermoc.) | 87.25Btu (I.T., pre-1956) |
| 23Calorie (Kilogram,thermoc.) | 91.21Btu (I.T., pre-1956) |
| 24Calorie (Kilogram,thermoc.) | 95.18Btu (I.T., pre-1956) |
| 25Calorie (Kilogram,thermoc.) | 99.14Btu (I.T., pre-1956) |
| 26Calorie (Kilogram,thermoc.) | 103.11Btu (I.T., pre-1956) |
| 27Calorie (Kilogram,thermoc.) | 107.07Btu (I.T., pre-1956) |
| 28Calorie (Kilogram,thermoc.) | 111.04Btu (I.T., pre-1956) |
| 29Calorie (Kilogram,thermoc.) | 115.01Btu (I.T., pre-1956) |
| 30Calorie (Kilogram,thermoc.) | 118.97Btu (I.T., pre-1956) |
| 31Calorie (Kilogram,thermoc.) | 122.94Btu (I.T., pre-1956) |
| 32Calorie (Kilogram,thermoc.) | 126.90Btu (I.T., pre-1956) |
| 33Calorie (Kilogram,thermoc.) | 130.87Btu (I.T., pre-1956) |
| 34Calorie (Kilogram,thermoc.) | 134.83Btu (I.T., pre-1956) |
| 35Calorie (Kilogram,thermoc.) | 138.80Btu (I.T., pre-1956) |
| 36Calorie (Kilogram,thermoc.) | 142.77Btu (I.T., pre-1956) |
| 37Calorie (Kilogram,thermoc.) | 146.73Btu (I.T., pre-1956) |
| 38Calorie (Kilogram,thermoc.) | 150.70Btu (I.T., pre-1956) |
| 39Calorie (Kilogram,thermoc.) | 154.66Btu (I.T., pre-1956) |
| Calories (Kilogram,thermoc.) | Btu (I.T., pre-1956) |
|---|---|
| 40Calorie (Kilogram,thermoc.) | 158.63Btu (I.T., pre-1956) |
| 41Calorie (Kilogram,thermoc.) | 162.59Btu (I.T., pre-1956) |
| 42Calorie (Kilogram,thermoc.) | 166.56Btu (I.T., pre-1956) |
| 43Calorie (Kilogram,thermoc.) | 170.53Btu (I.T., pre-1956) |
| 44Calorie (Kilogram,thermoc.) | 174.49Btu (I.T., pre-1956) |
| 45Calorie (Kilogram,thermoc.) | 178.46Btu (I.T., pre-1956) |
| 46Calorie (Kilogram,thermoc.) | 182.42Btu (I.T., pre-1956) |
| 47Calorie (Kilogram,thermoc.) | 186.39Btu (I.T., pre-1956) |
| 48Calorie (Kilogram,thermoc.) | 190.35Btu (I.T., pre-1956) |
| 49Calorie (Kilogram,thermoc.) | 194.32Btu (I.T., pre-1956) |
| 50Calorie (Kilogram,thermoc.) | 198.29Btu (I.T., pre-1956) |
| 51Calorie (Kilogram,thermoc.) | 202.25Btu (I.T., pre-1956) |
| 52Calorie (Kilogram,thermoc.) | 206.22Btu (I.T., pre-1956) |
| 53Calorie (Kilogram,thermoc.) | 210.18Btu (I.T., pre-1956) |
| 54Calorie (Kilogram,thermoc.) | 214.15Btu (I.T., pre-1956) |
| 55Calorie (Kilogram,thermoc.) | 218.11Btu (I.T., pre-1956) |
| 56Calorie (Kilogram,thermoc.) | 222.08Btu (I.T., pre-1956) |
| 57Calorie (Kilogram,thermoc.) | 226.05Btu (I.T., pre-1956) |
| 58Calorie (Kilogram,thermoc.) | 230.01Btu (I.T., pre-1956) |
| 59Calorie (Kilogram,thermoc.) | 233.98Btu (I.T., pre-1956) |