Security Staff Requirement Calculator

Work out security staff requirement instantly with clear inputs, formula shown and shareable results.

About Security Staff Requirement Calculator

Crowd stewarding scales with attendance at the chosen ratio adjusted for risk, with two staff per entrance added for search and admission duties. Entrance staffing is fixed by the number of doors rather than by crowd size, which is why small events with many entry points need proportionally more staff.

Formula

Staff required

staff = ceiling(attendees / attendees per steward x risk multiplier) + 2 x entrances

Worked example

With the default values below, Security Staff Requirement Calculator returns Security and stewarding staff of 28. Change any input above and every figure here is recalculated in your browser.

Inputs used

Attendeesminimum 1: 2,000
Attendees per stewardminimum 1: 100
Risk levelone of Low (seated, no alcohol), Medium (standing, alcohol served), High (large standing crowd, late finish): Medium (standing, alcohol served)
Entrances to staffminimum 1: 4

Results

Security and stewarding staff: 28
Crowd stewards: 20
Entrance and search staff: 8
Supervisors at one per twelve staff: 3

Step by step

1Values used
2Staff required
3Security and stewarding staff= 28
4Crowd stewards= 20
5Entrance and search staff= 8
6Supervisors at one per twelve staff= 3

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.
Indicative only. Stewarding levels must follow your licensing authority's requirements and a formal event risk assessment.

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

Indicative only. Stewarding levels must follow your licensing authority's requirements and a formal event risk assessment.

Frequently Asked Questions

How is the Security Staff Requirement figure worked out?

staff = ceiling(attendees / attendees per steward x risk multiplier) + 2 x entrances. Crowd stewarding scales with attendance at the chosen ratio adjusted for risk, with two staff per entrance added for search and admission duties.

Why does this matter?

Entrance staffing is fixed by the number of doors rather than by crowd size, which is why small events with many entry points need proportionally more staff.

What do I need to enter?

Enter attendees, attendees per steward, risk level, entrances to staff. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.