FTE stands for "full time employees," based on the number of hours worked. Each full-time employee equals 40 hours of work per week. Calculating FTEs can be useful for businesses or departments that want to know the number of full-time employees that it would take to complete the same amount of work as the current number of full-time and part-time workers. To calculate FTEs, you need to know how many hours per week each employee works.

Multiply the number of full-time employees your business employs by 40. For example, if you have five full-time employees, you would multiply 40 by 5 to get 200.

Add the number of hours each part-time employee works per week. For example, if you have two employees who work 20 hours per week, one that works 25 hours and one that works 30 hours, you would add 20 plus 20 plus 25 plus 30 to get 95.

Add the number of hours your full-time employees work to the number of hours your part-time employees work. In this example, you would add 200 to 95 to get 295.

Divide the total number of hours worked by 40 to calculate the number of FTEs. Finishing this example, you would divide 295 by 40 to get 7.375 FTEs.