Calculator Inputs
Formula Used
This calculator blends weighted checklist performance with recovery target alignment. Each control score is multiplied by its assigned weight, then added into a weighted control score.
Weighted Control Score = Sum of (Control Score × Weight) / 100
RTO Alignment = (Target RTO / Estimated RTO) × 100, capped at 120.
RPO Alignment = (Target RPO / Estimated RPO) × 100, capped at 120.
Continuity Index = (Weighted Control Score × 0.80) + (RTO Alignment × 0.10) + (RPO Alignment × 0.10)
This weighting keeps checklist quality as the main driver while still rewarding teams that meet or exceed recovery expectations.
How to Use This Calculator
Enter a score from 0 to 100 for each continuity control. Higher values mean better coverage, reliability, or operational readiness.
Add your target and estimated RTO values in hours. Then enter your target and estimated RPO values in minutes.
Click Calculate Continuity Score. The page will display the overall continuity index, readiness status, control pass count, weakest areas, and a Plotly graph.
Use the CSV export for audit trails or spreadsheet review. Use the PDF export when sharing readiness reports with engineering, operations, or leadership teams.
Example Data Table
| Control Area | Sample Score | Weight | Weighted Points |
|---|---|---|---|
| Backup Coverage | 92 | 12% | 11.04 |
| Restore Test Success | 84 | 12% | 10.08 |
| Incident Response Preparedness | 78 | 10% | 7.80 |
| Environment Redundancy | 88 | 12% | 10.56 |
| Sample Weighted Control Score | 82.40 | ||
If the same team has a target RTO of 4 hours, estimated RTO of 3.5 hours, target RPO of 60 minutes, and estimated RPO of 45 minutes, the continuity index will rise further due to strong recovery alignment.
Frequently Asked Questions
1. What does this calculator measure?
It measures software continuity readiness using weighted control scores plus RTO and RPO alignment. The result highlights overall resilience, weakest safeguards, and practical recovery gaps.
2. Why are some checklist items weighted more heavily?
Some controls affect survival more directly during disruption. Backups, restore testing, redundancy, and release reliability usually deserve higher weight because failure there can delay recovery across many systems.
3. What is a good continuity index?
A score above 90 suggests excellent readiness. Scores from 75 to 89 are strong. Scores below 75 usually indicate meaningful operational risk that deserves planned remediation.
4. How should I score a control area?
Use evidence, not optimism. Base scores on audits, restore drills, alert coverage, documentation reviews, on-call practice, and dependency validation. Consistent evidence makes the final result much more useful.
5. Can this replace a full business continuity review?
No. It is a fast planning and prioritization tool. It helps teams spot gaps quickly, but deeper reviews still need architecture analysis, tabletop exercises, and recovery testing.
6. Why are RTO and RPO included separately?
Checklist strength alone does not guarantee target recovery. RTO and RPO measure whether the current controls actually support acceptable downtime and acceptable data loss during real incidents.
7. How often should teams recalculate this score?
Recalculate after major releases, infrastructure changes, incident retrospectives, or quarterly risk reviews. Frequent scoring helps teams track whether continuity work is improving real readiness.
8. What should I do with the weakest areas?
Convert the lowest scoring controls into actionable backlog items. Assign owners, define evidence, schedule drills, and remeasure after improvements so continuity progress becomes visible and repeatable.