1. Choose the service window
Define the period you want to measure, such as lunch service or the full event.
2. Count guests served
Enter the number of guests actually served during that period.
3. Enter physical seats
Use the seats that were available for guests, not the total number of guest sittings.
4. Enter period length
Add the service-window length in hours so the calculator can also show guests per seat-hour.
5. Read both capacity measures
Seat turnover shows guest cycles per seat; guests per seat-hour adjusts the result for time.