This calculator allows you to convert from Btu (th)/second to Femtowatt and in a reverse direction. To convert from Btu (th)/second to Femtowatt, enter the amount of Btu (th)/second into the first input and to convert from Femtowatt to Btu (th)/second, enter the amount of Femtowatt into the second input.
4 Btu (th)/second = 4.2173999998977E+18 Femtowatt
Btu (th)/second to Watt | Btu (th)/second to Erg/second | Btu (th)/second to Horsepower | Btu (th)/second to Pferdestarke (ps) | Btu (th)/second to Foot pound-force/minute | Btu (th)/second to Kilocalorie (th)/hour | Btu (th)/second to Btu (IT)/hour |4 Btu (th)/second equal 4.2173999998977E+18 Femtowatt.
Every 1 Btu (th)/second = 1.0543499999744E+18 Femtowatt and so, 4 Btu (th)/second = 4 multiplied by 1.0543499999744E+18 = 4.2173999998977E+18 Femtowatt.
| 1 Btu (th)/second = 1.0543499999744E+18 Femtowatt |
| 2 Btu (th)/second = 2.1086999999489E+18 Femtowatt |
| 3 Btu (th)/second = 3.1630499999233E+18 Femtowatt |
| 4 Btu (th)/second = 4.2173999998977E+18 Femtowatt |
| 5 Btu (th)/second = 5.2717499998722E+18 Femtowatt |
| 6 Btu (th)/second = 6.3260999998466E+18 Femtowatt |
| 7 Btu (th)/second = 7.3804499998211E+18 Femtowatt |
| 8 Btu (th)/second = 8.4347999997955E+18 Femtowatt |
| 9 Btu (th)/second = 9.4891499997699E+18 Femtowatt |
| 10 Btu (th)/second = 1.0543499999744E+19 Femtowatt |
| 11 Btu (th)/second = 1.1597849999719E+19 Femtowatt |
| 12 Btu (th)/second = 1.2652199999693E+19 Femtowatt |
| 13 Btu (th)/second = 1.3706549999668E+19 Femtowatt |
| 14 Btu (th)/second = 1.4760899999642E+19 Femtowatt |
