| 1 fJ | = 9.4781698791344E-19 BTU |
| 2 fJ | = 1.8956339758269E-18 BTU |
| 3 fJ | = 2.8434509637403E-18 BTU |
| 4 fJ | = 3.7912679516538E-18 BTU |
| 5 fJ | = 4.7390849395672E-18 BTU |
| 6 fJ | = 5.6869019274806E-18 BTU |
| 7 fJ | = 6.6347189153941E-18 BTU |
| 8 fJ | = 7.5825359033075E-18 BTU |
| 9 fJ | = 8.5303528912209E-18 BTU |
| 10 fJ | = 9.4781698791344E-18 BTU |
| 20 fJ | = 1.8956339758269E-17 BTU |
| 30 fJ | = 2.8434509637403E-17 BTU |
| 40 fJ | = 3.7912679516538E-17 BTU |
| 50 fJ | = 4.7390849395672E-17 BTU |
| 60 fJ | = 5.6869019274806E-17 BTU |
| 70 fJ | = 6.6347189153941E-17 BTU |
| 80 fJ | = 7.5825359033075E-17 BTU |
| 90 fJ | = 8.5303528912209E-17 BTU |
| 100 fJ | = 9.4781698791344E-17 BTU |
| 200 fJ | = 1.8956339758269E-16 BTU |
| 300 fJ | = 2.8434509637403E-16 BTU |
| 400 fJ | = 3.7912679516538E-16 BTU |
| 500 fJ | = 4.7390849395672E-16 BTU |
| 600 fJ | = 5.6869019274806E-16 BTU |
| 700 fJ | = 6.6347189153941E-16 BTU |
| 800 fJ | = 7.5825359033075E-16 BTU |
| 900 fJ | = 8.5303528912209E-16 BTU |
| 1000 fJ | = 9.4781698791344E-16 BTU |
| 2000 fJ | = 1.8956339758269E-15 BTU |
| 4000 fJ | = 3.7912679516538E-15 BTU |
| 5000 fJ | = 4.7390849395672E-15 BTU |
| 7500 fJ | = 7.1086274093508E-15 BTU |
| 10000 fJ | = 9.4781698791344E-15 BTU |
| 25000 fJ | = 2.3695424697836E-14 BTU |
| 50000 fJ | = 4.7390849395672E-14 BTU |
| 100000 fJ | = 9.4781698791344E-14 BTU |
| 1000000 fJ | = 9.4781698791344E-13 BTU |
| 1000000000 fJ | = 9.4781698791344E-10 BTU |