| 1 TWh | = 3414425093270.2 BTUth |
| 2 TWh | = 6828850186540.4 BTUth |
| 3 TWh | = 10243275279811 BTUth |
| 4 TWh | = 13657700373081 BTUth |
| 5 TWh | = 17072125466351 BTUth |
| 6 TWh | = 20486550559621 BTUth |
| 7 TWh | = 23900975652891 BTUth |
| 8 TWh | = 27315400746162 BTUth |
| 9 TWh | = 30729825839432 BTUth |
| 10 TWh | = 34144250932702 BTUth |
| 20 TWh | = 68288501865404 BTUth |
| 30 TWh | = 1.0243275279811E+14 BTUth |
| 40 TWh | = 1.3657700373081E+14 BTUth |
| 50 TWh | = 1.7072125466351E+14 BTUth |
| 60 TWh | = 2.0486550559621E+14 BTUth |
| 70 TWh | = 2.3900975652891E+14 BTUth |
| 80 TWh | = 2.7315400746162E+14 BTUth |
| 90 TWh | = 3.0729825839432E+14 BTUth |
| 100 TWh | = 3.4144250932702E+14 BTUth |
| 200 TWh | = 6.8288501865404E+14 BTUth |
| 300 TWh | = 1.0243275279811E+15 BTUth |
| 400 TWh | = 1.3657700373081E+15 BTUth |
| 500 TWh | = 1.7072125466351E+15 BTUth |
| 600 TWh | = 2.0486550559621E+15 BTUth |
| 700 TWh | = 2.3900975652891E+15 BTUth |
| 800 TWh | = 2.7315400746162E+15 BTUth |
| 900 TWh | = 3.0729825839432E+15 BTUth |
| 1000 TWh | = 3.4144250932702E+15 BTUth |
| 2000 TWh | = 6.8288501865404E+15 BTUth |
| 4000 TWh | = 1.3657700373081E+16 BTUth |
| 5000 TWh | = 1.7072125466351E+16 BTUth |
| 7500 TWh | = 2.5608188199526E+16 BTUth |
| 10000 TWh | = 3.4144250932702E+16 BTUth |
| 25000 TWh | = 8.5360627331755E+16 BTUth |
| 50000 TWh | = 1.7072125466351E+17 BTUth |
| 100000 TWh | = 3.4144250932702E+17 BTUth |
| 1000000 TWh | = 3.4144250932702E+18 BTUth |
| 1000000000 TWh | = 3.4144250932702E+21 BTUth |