How long will you really wait in line? Our Queue Time Calculator estimates your waiting time from the number of people ahead, the time each person takes and the number of counters open. It also shows the clock time you’ll be served and includes a Little’s Law calculator for business owners analyzing queue length and arrival rates.
Queue Time Calculator
Estimated average waiting time
Little's Law (queue length and arrival rate)
Average time each person spends in the queue (W = L / lambda)
How to use:
- Enter the number of people ahead of you.
- Enter the average service time per person and choose minutes or seconds.
- Enter how many counters are open.
- Click “Calculate Wait Time” to see the average and worst-case wait.
- For business analysis, use the Little’s Law section with queue length and arrivals per hour.
FAQs:
Q: How is the waiting time calculated?
A: People ahead times service time, divided by the number of open counters.
Q: What is Little’s Law?
A: It says the average wait equals the average number of people in the queue divided by the arrival rate.
Q: Is the result exact?
A: No. It is an estimate based on averages, and real waits vary.
