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Toilet Requirement For Event Calculator

Work out toilet requirement for event instantly with clear inputs, formula shown and shareable results.

About Toilet Requirement For Event Calculator

Event guidance provides about one female cubicle per 100 attendees, one male cubicle per 500 and one urinal per 150, with uplifts for long events and alcohol service. Female provision drives the total because cubicle dwell time is roughly twice that of a urinal, which is why an even split of fittings creates the familiar queues.

Formulas

Female cubicles

cubicles = ceiling(female attendees / 100 x uplift)

Male provision

cubicles = ceiling(male attendees / 500 x uplift); urinals = ceiling(male attendees / 150 x uplift)

Worked example

With the default values below, Toilet Requirement For Event Calculator returns Total fittings required of 10. Change any input above and every figure here is recalculated in your browser.

Inputs used

Attendeesminimum 1
800
Event durationminimum 0.5 h
6 h
Share of attendees using female facilitiesaccepts 0–100 %
50 %
Alcohol being served
Yes

Results

Total fittings required
10
Female cubicles
5
Male cubicles
1
Urinals
4

Step by step

  1. 1Values used
  2. 2Female cubicles
  3. 3Male provision
  4. 4Total fittings required= 10
  5. 5Female cubicles= 5
  6. 6Male cubicles= 1
  7. 7Urinals= 4

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Toilet Requirement For Event figure worked out?

cubicles = ceiling(female attendees / 100 x uplift). Event guidance provides about one female cubicle per 100 attendees, one male cubicle per 500 and one urinal per 150, with uplifts for long events and alcohol service.

Why does this matter?

Female provision drives the total because cubicle dwell time is roughly twice that of a urinal, which is why an even split of fittings creates the familiar queues.

What do I need to enter?

Enter attendees, event duration, share of attendees using female facilities, alcohol being served. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.

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