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On Safe Lines Free Advice on Conducting Risk Assessments and their Management to Help You Manage Health and Safety Responsibilities
Sample of a 5 x 5 Risk Assessment Matrix:
Risk Assessment 5 x 5 Risk Matrix
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5 x 5 Risk Matrix |
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L I K E L I H O O D |
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5 |
5 |
10 |
15 |
20 |
25 |
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4 |
4 |
8 |
12 |
16 |
20 |
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3 |
3 |
6 |
9 |
12 |
15 |
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2 |
2 |
4 |
6 |
8 |
10 |
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1 |
1 |
2 |
3 |
4 |
5 |
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1 |
2 |
3 |
4 |
5 |
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CONSEQUENCES |
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Likelihood (Probability) |
Consequences (Impact) |
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5. Almost Certain |
5. Fatality |
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4. Probable |
4. Major Injury, resulting in disability |
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3. Possible |
3. Injury Requires, Doctor’s or Hospital attendance |
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2. Possible (under unfortunate circumstances) |
2. Minor Injury, 1st Aid required |
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1. Rare |
1. Minor Injury, 1st Aid not required |
Risk Rating is calculated by multiplying the likelihood against the consequences, e.g. taking a likelihood of 4, which is classified as Probable, and multiplying this against a consequence of 2, which is classified as a Minor Injury 1st aid required, would give you and overall risk rating of 8, which would be risk rated as a low risk.
High risk equals 16 to 25.
High Risks activities should cease immediately until further control measures to mitigate the risk are introduced.
Medium risk equals 9 to 15.
Medium Risks should only be tolerated for the short-term and then only whilst further control measures to mitigate the risk are being planned and introduced, within a defined time period. Note: Medium risks can be an organisations greatest risk, it's Achilles heel, this due to the fact that they can be tolerated in the short-term.
Low risk equals 1 to 8.
Low Risks are largely acceptable, subject to reviews periodically, or after significant change etc...
Risk Rating
Low
Medium
High
Alternative 5x5 Risk Assessment Matrix - (Cold to Hot risk flow)
Likelihood can also be thought of as Probability, and Consequences as Impact.
