Examples
Examples
Try the starting example
- Guests
- 120
- Measured seconds per guest per line
- 30
- Parallel serving lines
- 2
- Nominal guests per hour
- 240
- Busiest line guest count
- 60
- Clearing time (minutes)
- 30
Try another scenario
- Guests
- 7
- Measured seconds per guest per line
- 20
- Parallel serving lines
- 3
- Nominal guests per hour
- 540
- Busiest line guest count
- 3
- Clearing time (minutes)
- 1
Calculation method
Calculation method
Nominal guests per hour
Parallel lines × 3600 / seconds per guest.
Busiest line guest count
Round up guests / parallel lines.
Clearing time (minutes)
Busiest line guest count × seconds per guest / 60.
Symbols and units
- a
- Guests
- b
- Measured seconds per guest per line
- c
- Parallel serving lines
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- All guests are ready at the start, lines are identical and guests split as evenly as possible. This is a deterministic batch estimate, not a random-arrival waiting-time prediction.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
OpenStax: ratios, percentages and rectangular geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.