Event Attendance Reconciliation Calculator
Reconcile event confirmations, checked-in confirmed guests and walk-ins to record total attendance, no-shows and show-up rate.
Your results
Calculation breakdown
- Method
- attendance = checked-in confirmed guests + walk-ins; no-shows = confirmed − checked in; show-up rate = checked in ÷ confirmed × 100
Worked example
From 500 confirmed guests, 450 checked in and 20 walk-ins produce total recorded attendance of 470, 50 confirmed no-shows and a 90% show-up rate.
Assumptions
- Confirmed, checked-in and walk-in records use mutually consistent guest definitions for one event.
- Calculations retain full precision internally and round only the displayed result; metric units follow Australian conventions.
Sources
Rates effective 23 August 2026.
How this calculator works
Reconcile confirmed guests with checked-in confirmed guests and walk-ins so an Australian event team can record total attendance and no-shows. The record separates confirmed-guest attrition from unplanned walk-ins without treating either count as a future attendance forecast. The calculation keeps counts, metric dimensions, time windows, entered rates, capacities and allowances visible so an Australian user can reproduce it from an approved run sheet, venue record, site plan, drawing or measurement note rather than relying on an unexplained planning recommendation.
Frequently asked questions
Which inputs belong in the event attendance reconciliation calculator?
Use one documented event, drawing, shape, coordinate record or review period and keep every input on the labelled basis. Use deduplicated check-in records, and keep staff, suppliers and performers outside guest counts unless the event plan defines otherwise.
How should I use the event attendance reconciliation result?
The record separates confirmed-guest attrition from unplanned walk-ins without treating either count as a future attendance forecast. Retain the source dimensions, counts, units, assumptions and calculation date with the result.
Does the event attendance reconciliation calculator approve a plan or measurement?
No. It is a transparent arithmetic check only. Use deduplicated check-in records, and keep staff, suppliers and performers outside guest counts unless the event plan defines otherwise. Obtain venue, council, technical or professional review for consequential use.