How do I calculate a project risk score?

Risk Score = Probability × Impact, typically on a 1–5 scale for each factor.

What does a high risk score mean?

A high score (for example, 16–25) means the risk is significant and needs mitigation or a response plan.

Calculate a simple qualitative risk score by combining probability and impact. A higher result means higher priority for mitigation.

Probability (1 = Very Low, 5 = Very High) Impact (1 = Low, 5 = Severe)

Risk Score = Probability × Impact (1–25 scale). Scores in the high range (16–25) should have an active mitigation / response plan.