| 1 keV | = 1.517402710561E-19 BTUmean |
| 2 keV | = 3.0348054211219E-19 BTUmean |
| 3 keV | = 4.5522081316829E-19 BTUmean |
| 4 keV | = 6.0696108422438E-19 BTUmean |
| 5 keV | = 7.5870135528048E-19 BTUmean |
| 6 keV | = 9.1044162633658E-19 BTUmean |
| 7 keV | = 1.0621818973927E-18 BTUmean |
| 8 keV | = 1.2139221684488E-18 BTUmean |
| 9 keV | = 1.3656624395049E-18 BTUmean |
| 10 keV | = 1.517402710561E-18 BTUmean |
| 20 keV | = 3.0348054211219E-18 BTUmean |
| 30 keV | = 4.5522081316829E-18 BTUmean |
| 40 keV | = 6.0696108422438E-18 BTUmean |
| 50 keV | = 7.5870135528048E-18 BTUmean |
| 60 keV | = 9.1044162633658E-18 BTUmean |
| 70 keV | = 1.0621818973927E-17 BTUmean |
| 80 keV | = 1.2139221684488E-17 BTUmean |
| 90 keV | = 1.3656624395049E-17 BTUmean |
| 100 keV | = 1.517402710561E-17 BTUmean |
| 200 keV | = 3.0348054211219E-17 BTUmean |
| 300 keV | = 4.5522081316829E-17 BTUmean |
| 400 keV | = 6.0696108422438E-17 BTUmean |
| 500 keV | = 7.5870135528048E-17 BTUmean |
| 600 keV | = 9.1044162633658E-17 BTUmean |
| 700 keV | = 1.0621818973927E-16 BTUmean |
| 800 keV | = 1.2139221684488E-16 BTUmean |
| 900 keV | = 1.3656624395049E-16 BTUmean |
| 1000 keV | = 1.517402710561E-16 BTUmean |
| 2000 keV | = 3.0348054211219E-16 BTUmean |
| 4000 keV | = 6.0696108422438E-16 BTUmean |
| 5000 keV | = 7.5870135528048E-16 BTUmean |
| 7500 keV | = 1.1380520329207E-15 BTUmean |
| 10000 keV | = 1.517402710561E-15 BTUmean |
| 25000 keV | = 3.7935067764024E-15 BTUmean |
| 50000 keV | = 7.5870135528048E-15 BTUmean |
| 100000 keV | = 1.517402710561E-14 BTUmean |
| 1000000 keV | = 1.517402710561E-13 BTUmean |
| 1000000000 keV | = 1.517402710561E-10 BTUmean |