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First Aid Requirements Calculator — Kits & Officers

Work out how many first aid kits and trained first aiders your workplace needs based on size, risk level and location under the WHS Code.

Last verified: 21 June 2026Jump to calculator ↓

The model Code of Practice recommends, as a guide, 1 first aider per 50 workers (low risk) and 1 per 25 (high risk); high-risk workplaces without timely access to medical or ambulance services should have at least 1 per 10. This tool applies those recommended ratios to your worker count, tells you whether a first aid room is recommended, and gives kit guidance — but these are recommendations, not strict law. The law requires first aid that is adequate for your specific workplace.

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General information and estimates only — not legal, financial or tax advice. Always check your specific award, agreement or contract, or a qualified professional, before you rely on the result.