Queue Wait Estimator
Estimate a single-line wait with parallel identical service stations.
Your inputs
Calculation results
Formula & assumptions
Wait estimate = floor(people ahead/stations) × service duration; stations start together.
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using Queue Wait Estimator
Estimate a single-line wait with parallel identical service stations.
- Enter people ahead, service duration, active stations using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
People ahead: 20 people Service duration: 3 minutes Active stations: 4 stations Estimated wait · minutes: 15 Your completion · minutes: 18 Service capacity · people per hour: 80
Questions & answers
What does Queue Wait Estimator calculate?
Estimate a single-line wait with parallel identical service stations.
Which units should I enter?
People ahead uses people. Service duration uses minutes. Active stations uses stations. Convert values to these units before calculating.
Which formula does it use?
Wait estimate = floor(people ahead/stations) × service duration; stations start together.
What does the included example show?
People ahead: 20 people; Service duration: 3 minutes; Active stations: 4 stations. Result: Estimated wait · minutes = 15; Your completion · minutes = 18; Service capacity · people per hour = 80.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
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