Convert 4 Horsepower to Femtojoule/second: 4 Horsepower in Femtojoule/second
This calculator allows you to convert from Horsepower to Femtojoule/second and in a reverse direction. To convert from Horsepower to Femtojoule/second, enter the amount of Horsepower into the first input and to convert from Femtojoule/second to Horsepower, enter the amount of Femtojoule/second into the second input.
Every 1 Horsepower = 7.4569987158229E+17 Femtojoule/second
and so, 4 Horsepower = 4 multiplied by 7.4569987158229E+17 = 2.9827994863291E+18 Femtojoule/second.