How to use this calculator
- Enter or choose full-time employees.
- Enter or choose part-time employees.
- Enter or choose average part-time hours per week.
- Enter or choose full-time hours per week.
- The total FTE updates as you type. Use Copy result or Share to keep it.
Method
FTE = Full-time employees + Part-time employees × Part-time hours ÷ Full-time hours
- Part-time hours
- average weekly hours of part-time staff
- Full-time hours
- standard full-time weekly hours
Worked example
- Part-time FTE = 10 × 20 ÷ 40 = 5.
- Total FTE = 40 + 5 = 45.
- Headcount = 40 + 10 = 50, so 45 ÷ 50 = 0.9 FTE per person.
Forty full-timers plus ten people on 20 hours a week make 45 FTE from a headcount of 50.
What the result means
Use FTE for budgets, capacity and ratios such as revenue per employee; use headcount for anything per person, such as laptops, licences or benefits enrolment.
Assumptions and limits
- Everyone counted full-time works the standard full-time week.
- Overtime, unpaid leave and contractors are not included; some reporting rules (for example for benefits eligibility) define FTE differently.
Questions
Is FTE based on contracted or actual hours?
Planning normally uses contracted hours. For a period review, use actual paid hours divided by full-time hours for the same period.
Can FTE exceed headcount?
Not with contracted hours. It can if you count overtime, which is why overtime is usually excluded.