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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
A foot poundal is the work done by a force of one poundal acting through a distance of one foot, in the direction of the force. It equates to 0.0421401100938048 J
| Btu (mean) | Foot-poundals |
|---|---|
| 0Btu (mean) | 0.00ft-pd |
| 1Btu (mean) | 25056.18ft-pd |
| 2Btu (mean) | 50112.35ft-pd |
| 3Btu (mean) | 75168.53ft-pd |
| 4Btu (mean) | 100224.70ft-pd |
| 5Btu (mean) | 125280.88ft-pd |
| 6Btu (mean) | 150337.05ft-pd |
| 7Btu (mean) | 175393.23ft-pd |
| 8Btu (mean) | 200449.40ft-pd |
| 9Btu (mean) | 225505.58ft-pd |
| 10Btu (mean) | 250561.75ft-pd |
| 11Btu (mean) | 275617.93ft-pd |
| 12Btu (mean) | 300674.10ft-pd |
| 13Btu (mean) | 325730.28ft-pd |
| 14Btu (mean) | 350786.45ft-pd |
| 15Btu (mean) | 375842.63ft-pd |
| 16Btu (mean) | 400898.80ft-pd |
| 17Btu (mean) | 425954.98ft-pd |
| 18Btu (mean) | 451011.15ft-pd |
| 19Btu (mean) | 476067.33ft-pd |
| Btu (mean) | Foot-poundals |
|---|---|
| 20Btu (mean) | 501123.50ft-pd |
| 21Btu (mean) | 526179.68ft-pd |
| 22Btu (mean) | 551235.85ft-pd |
| 23Btu (mean) | 576292.03ft-pd |
| 24Btu (mean) | 601348.20ft-pd |
| 25Btu (mean) | 626404.38ft-pd |
| 26Btu (mean) | 651460.55ft-pd |
| 27Btu (mean) | 676516.73ft-pd |
| 28Btu (mean) | 701572.91ft-pd |
| 29Btu (mean) | 726629.08ft-pd |
| 30Btu (mean) | 751685.26ft-pd |
| 31Btu (mean) | 776741.43ft-pd |
| 32Btu (mean) | 801797.61ft-pd |
| 33Btu (mean) | 826853.78ft-pd |
| 34Btu (mean) | 851909.96ft-pd |
| 35Btu (mean) | 876966.13ft-pd |
| 36Btu (mean) | 902022.31ft-pd |
| 37Btu (mean) | 927078.48ft-pd |
| 38Btu (mean) | 952134.66ft-pd |
| 39Btu (mean) | 977190.83ft-pd |
| Btu (mean) | Foot-poundals |
|---|---|
| 40Btu (mean) | 1002247.01ft-pd |
| 41Btu (mean) | 1027303.18ft-pd |
| 42Btu (mean) | 1052359.36ft-pd |
| 43Btu (mean) | 1077415.53ft-pd |
| 44Btu (mean) | 1102471.71ft-pd |
| 45Btu (mean) | 1127527.88ft-pd |
| 46Btu (mean) | 1152584.06ft-pd |
| 47Btu (mean) | 1177640.23ft-pd |
| 48Btu (mean) | 1202696.41ft-pd |
| 49Btu (mean) | 1227752.58ft-pd |
| 50Btu (mean) | 1252808.76ft-pd |
| 51Btu (mean) | 1277864.93ft-pd |
| 52Btu (mean) | 1302921.11ft-pd |
| 53Btu (mean) | 1327977.28ft-pd |
| 54Btu (mean) | 1353033.46ft-pd |
| 55Btu (mean) | 1378089.64ft-pd |
| 56Btu (mean) | 1403145.81ft-pd |
| 57Btu (mean) | 1428201.99ft-pd |
| 58Btu (mean) | 1453258.16ft-pd |
| 59Btu (mean) | 1478314.34ft-pd |