| 1 fWh | = 3.4121411564884E-15 BTU |
| 2 fWh | = 6.8242823129768E-15 BTU |
| 3 fWh | = 1.0236423469465E-14 BTU |
| 4 fWh | = 1.3648564625954E-14 BTU |
| 5 fWh | = 1.7060705782442E-14 BTU |
| 6 fWh | = 2.047284693893E-14 BTU |
| 7 fWh | = 2.3884988095419E-14 BTU |
| 8 fWh | = 2.7297129251907E-14 BTU |
| 9 fWh | = 3.0709270408395E-14 BTU |
| 10 fWh | = 3.4121411564884E-14 BTU |
| 20 fWh | = 6.8242823129768E-14 BTU |
| 30 fWh | = 1.0236423469465E-13 BTU |
| 40 fWh | = 1.3648564625954E-13 BTU |
| 50 fWh | = 1.7060705782442E-13 BTU |
| 60 fWh | = 2.047284693893E-13 BTU |
| 70 fWh | = 2.3884988095419E-13 BTU |
| 80 fWh | = 2.7297129251907E-13 BTU |
| 90 fWh | = 3.0709270408395E-13 BTU |
| 100 fWh | = 3.4121411564884E-13 BTU |
| 200 fWh | = 6.8242823129768E-13 BTU |
| 300 fWh | = 1.0236423469465E-12 BTU |
| 400 fWh | = 1.3648564625954E-12 BTU |
| 500 fWh | = 1.7060705782442E-12 BTU |
| 600 fWh | = 2.047284693893E-12 BTU |
| 700 fWh | = 2.3884988095419E-12 BTU |
| 800 fWh | = 2.7297129251907E-12 BTU |
| 900 fWh | = 3.0709270408395E-12 BTU |
| 1000 fWh | = 3.4121411564884E-12 BTU |
| 2000 fWh | = 6.8242823129768E-12 BTU |
| 4000 fWh | = 1.3648564625954E-11 BTU |
| 5000 fWh | = 1.7060705782442E-11 BTU |
| 7500 fWh | = 2.5591058673663E-11 BTU |
| 10000 fWh | = 3.4121411564884E-11 BTU |
| 25000 fWh | = 8.5303528912209E-11 BTU |
| 50000 fWh | = 1.7060705782442E-10 BTU |
| 100000 fWh | = 3.4121411564884E-10 BTU |
| 1000000 fWh | = 3.4121411564884E-9 BTU |
| 1000000000 fWh | = 3.4121411564884E-6 BTU |