# Cybersecurity Risk Score Calculator

> Combine your own risk factors, scores and weights into a transparent 0–100 cybersecurity risk index and see which factor contributes most.

Category: IT, networking & security · Applies to: Worldwide · Last updated: 2026-10-29
Interactive calculator: https://calculators.geekmidst.com/calculators/cybersecurity-risk-score-calculator

This is a weighted-average index, not a predictive model: you choose the factors, score each from 0 to 10 and decide how much each matters. The page shows exactly how every point of the score is made up.

Also called: Security risk index calculator.

## Inputs
- Factor 1 (default Internet exposure; optional)
- Factor 1 score (unit 0–10; default 7; optional)
- Factor 1 weight (default 3; optional)
- Factor 2 (default Unpatched vulnerabilities; optional)
- Factor 2 score (unit 0–10; default 6; optional)
- Factor 2 weight (default 3; optional)
- Factor 3 (default Data sensitivity; optional)
- Factor 3 score (unit 0–10; default 8; optional)
- Factor 3 weight (default 2; optional)
- Factor 4 (default Control gaps; optional)
- Factor 4 score (unit 0–10; default 4; optional)
- Factor 4 weight (default 2; optional)
- Factor 5 (default ; optional)
- Factor 5 score (unit 0–10; default ; optional)
- Factor 5 weight (default ; optional)
- Factor 6 (default ; optional)
- Factor 6 score (unit 0–10; default ; optional)
- Factor 6 weight (default ; optional)

## Results
- Weighted risk index
- Largest contributor
- Factors used
- Total weight

## Formula

```
Index = 10 × Σ(Weightᵢ × Scoreᵢ) ÷ Σ Weightᵢ;  Points from factor i = 10 × Weightᵢ × Scoreᵢ ÷ Σ Weight
```

Where:
- Scoreᵢ: your 0–10 rating of factor i (10 = worst)
- Weightᵢ: how much factor i counts relative to the others (any positive numbers)

## Worked example
1. Weighted sum = 3×7 + 3×6 + 2×8 + 2×4 = 21 + 18 + 16 + 8 = 63.
2. Total weight = 3 + 3 + 2 + 2 = 10.
3. Index = 10 × 63 ÷ 10 = 63 out of 100; internet exposure contributes 21 points, the most.

**Result:** With these four factors the weighted risk index is 63 out of 100, driven mostly by internet exposure.

## What the result means

Use the index to compare systems or track one system over time with the same factors and weights. The number has no meaning outside your own scoring scheme, so do not compare it with scores built on different factors, and do not treat it as a probability of a breach.

## Assumptions and limits
- Factors are scored on the same 0–10 scale, where higher means riskier.
- Weights are relative; only their proportions matter.
- A weighted average cannot capture interactions, such as a critical vulnerability on an internet-facing system being far worse than either alone.
- For likelihood-and-impact assessments, follow your organisation’s method (for example NIST SP 800-30 or ISO/IEC 27005).

## Questions

### Is this an industry-standard risk score?

No. It is a transparent weighted average of the factors you choose. Standards such as NIST SP 800-30 describe how to assess likelihood and impact; this tool only does the arithmetic of combining your ratings.

### How should I choose the weights?

Agree them with stakeholders before scoring, write them down and keep them fixed, so that changes in the index reflect changes in risk rather than in the method.

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Source: GM¹X CalcVerse — https://calculators.geekmidst.com/calculators/cybersecurity-risk-score-calculator