How many first aiders do you need?
UK HSE guidance links first-aid provision to headcount and hazard level (low office-style vs higher-risk industrial). This tool applies a simplified table for planning — always complete a written first-aid needs assessment for your sites.
First Aid Needs Calculator
First aid · HSE-style headcount table
Estimate first aiders and appointed persons from headcount and hazard band. Complete a written needs assessment for real sites.
Formula: First aiders from headcount × hazard band (HSE-style table)
- Cover absences and holidays in the roster.
- Match kit contents to residual risks.
- Train for site-specific injuries on high-hazard work.
Frequently asked questions
Is this a legal minimum?
It is indicative planning based on common HSE-style bands. Your needs assessment may require more cover for shifts, remote work, or specific hazards.
Appointed person vs first aider?
An appointed person takes charge of first-aid arrangements; a first aider holds appropriate training (e.g. EFAW/FAW or equivalent).
Multiple buildings?
Assess each workplace or significant area — shared numbers across distant sites rarely work.
Contractors on site?
Include people you are responsible for in the assessment, or confirm their employer’s cover in the interface agreement.
