Calculator · No signup · HSE-aligned
Risk Matrix Calculator (5×5)
Score any hazard by likelihood and severity to get an instant RAG rating and HSE-aligned mitigation timeline. Use this for risk assessments, audits, and safety reviews.
Hazard details
2 — Unlikely
RareAlmost certain
2 — Minor
NegligibleCatastrophic
Aligned to HSE risk management guidelines. All data stays in your browser.
Risk matrix — your position highlighted
Sev →
Like ↓
Like ↓
1
Negl
Negl
2
Mino
Mino
3
Mode
Mode
4
Majo
Majo
5
Cata
Cata
5 Almo
5
10
15
20
25
4 Like
4
8
12
16
20
3 Poss
3
6
9
12
15
2 Unli
2
4
6
8
10
1 Rare
1
2
3
4
5
Low risk (score 1–4)
Medium risk (score 5–12)
High risk (score 15–25)
Risk assessment
LiveRisk score
4
Low risk
Likelihood
2 — Unlikely
Severity
2 — Minor
Required action
Monitor and review annually. No immediate action required. Document in risk register.
Likelihood scale
Rating likelihood (1–5)
- —1 — Rare
- —2 — Unlikely
- —3 — Possible
- —4 — Likely
- —5 — Almost certain
Severity scale
Rating severity (1–5)
- —1 — Negligible
- —2 — Minor
- —3 — Moderate
- —4 — Major
- —5 — Catastrophic
RAG thresholds
Risk score thresholds
- —1–4: Low — monitor and review
- —5–12: Medium — action within 1 month
- —15–25: High — immediate action
assetos cli — get started
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Log risk assessments against assets.
AssetOS links risk scores directly to assets, work orders, and inspection records — so nothing falls through the gap between spreadsheet tabs.
# free to start · no credit card · your data, always · cancel anytime
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