| 1 fW | = 3.412141633128E-15 BTU/h |
| 2 fW | = 6.8242832662559E-15 BTU/h |
| 3 fW | = 1.0236424899384E-14 BTU/h |
| 4 fW | = 1.3648566532512E-14 BTU/h |
| 5 fW | = 1.706070816564E-14 BTU/h |
| 6 fW | = 2.0472849798768E-14 BTU/h |
| 7 fW | = 2.3884991431896E-14 BTU/h |
| 8 fW | = 2.7297133065024E-14 BTU/h |
| 9 fW | = 3.0709274698152E-14 BTU/h |
| 10 fW | = 3.412141633128E-14 BTU/h |
| 20 fW | = 6.8242832662559E-14 BTU/h |
| 30 fW | = 1.0236424899384E-13 BTU/h |
| 40 fW | = 1.3648566532512E-13 BTU/h |
| 50 fW | = 1.706070816564E-13 BTU/h |
| 60 fW | = 2.0472849798768E-13 BTU/h |
| 70 fW | = 2.3884991431896E-13 BTU/h |
| 80 fW | = 2.7297133065024E-13 BTU/h |
| 90 fW | = 3.0709274698152E-13 BTU/h |
| 100 fW | = 3.412141633128E-13 BTU/h |
| 200 fW | = 6.8242832662559E-13 BTU/h |
| 300 fW | = 1.0236424899384E-12 BTU/h |
| 400 fW | = 1.3648566532512E-12 BTU/h |
| 500 fW | = 1.706070816564E-12 BTU/h |
| 600 fW | = 2.0472849798768E-12 BTU/h |
| 700 fW | = 2.3884991431896E-12 BTU/h |
| 800 fW | = 2.7297133065024E-12 BTU/h |
| 900 fW | = 3.0709274698152E-12 BTU/h |
| 1000 fW | = 3.412141633128E-12 BTU/h |
| 2000 fW | = 6.8242832662559E-12 BTU/h |
| 4000 fW | = 1.3648566532512E-11 BTU/h |
| 5000 fW | = 1.706070816564E-11 BTU/h |
| 7500 fW | = 2.559106224846E-11 BTU/h |
| 10000 fW | = 3.412141633128E-11 BTU/h |
| 25000 fW | = 8.5303540828199E-11 BTU/h |
| 50000 fW | = 1.706070816564E-10 BTU/h |
| 100000 fW | = 3.412141633128E-10 BTU/h |
| 1000000 fW | = 3.412141633128E-9 BTU/h |
| 1000000000 fW | = 3.412141633128E-6 BTU/h |