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Occupational Health & Safety Risk Assessment
Score a workplace hazard using the standard 5×5 Likelihood × Severity risk matrix, see where it falls, and get a matching control recommendation.
Assess a Hazard
List updates automatically based on the selected phase.
How probable is it that this hazard causes harm?
How serious would the resulting harm be?
Risk Score
– / 25
Select a phase, hazard, likelihood, and severity to see the risk score.
Saved!
Risk Matrix (your assessment is outlined)
| 1 Negligible |
2 Minor |
3 Moderate |
4 Major |
5 Catastrophic |
|---|
Low (1–3)
Medium (4–9)
High (10–15)
Extreme (16–25)
Hierarchy of Controls (most to least effective)
1
EliminationPhysically remove the hazard entirely.
2
SubstitutionReplace the hazard with a safer alternative.
3
Engineering ControlsIsolate people from the hazard (e.g. biosafety cabinets, ventilation).
4
Administrative ControlsChange how people work (SOPs, training, signage, scheduling).
5
PPEProtect the worker with gloves, masks, gowns, and eyewear — last line of defense.
Saved Assessments
No assessments saved yet — complete one above and tap “Save This Assessment.”
How to use this tool
- Select the Phase / Process Area first — the Hazard / Activity list updates automatically to show the specific risks relevant to that phase.
- Rate Likelihood (how probable the hazard causes harm) and Severity (how serious the resulting harm would be), each on a 1–5 scale.
- Risk Score = Likelihood × Severity. The matrix highlights exactly where your assessment falls.
- Use the Hierarchy of Controls to select the most effective control(s) practicable for the risk level identified.
- Don't see your hazard listed? Select a phase, then type it into the "Not listed?" field and tap + Add — it's added to that phase's list and selected automatically.
- Once a full assessment is scored, tap "Save This Assessment" to keep it in the Saved Assessments list below, stored locally in your browser. Export the whole list as a CSV at any time.
Notes and limitations
- This is a standard qualitative 5×5 risk matrix (consistent with ISO 45001 / HIRARC practice) — your organization's documented risk assessment procedure and rating definitions take precedence if they differ.
- Risk assessments should be reviewed periodically and whenever a process, equipment, or hazard changes.
- Document completed assessments (hazard, score, controls, reviewer, date) per your quality management system (e.g. ISO 15189 / ISO 45001).
