With this information, you can calculate the quantity of hours 18 seconds is equal to.

¿What is the inverse calculation between 1 hour and 18 seconds?

Performing the inverse calculation of the relationship between units, we obtain that 1 hour is 200 times 18 seconds.

Which is the same to say that 18 seconds is 0.005 hours.

Eighteen seconds equals to zero hours. *Approximation

A hour is two hundred times eighteen seconds. *Approximation