Code Quality
Code Review Time Estimator
Enter PR size and complexity factors to estimate review time with complexity multipliers for security code and reviewer familiarity.
Calculations run locally in your browserTool
Example — 300 lines · 8 files · non-security · medium familiarity
Estimated review time
56 min
based on size + context
Lines changed
300
Medium PR
Security review
Standard
Familiarity factor
1×
reviewer context adjustment
About this tool
Code Review Time Estimator
The Code Review Time Estimator computes review time from lines changed, file count, and complexity multipliers for security code, cross-component scope, and reviewer familiarity.
• Estimate review time when assigning a reviewer for sprint planning
• Identify PRs that exceed the 90-minute optimal review session threshold
• Model total review time per sprint when multiple PRs are queued
• Justify PR size guidelines with concrete review time data
Affiliate disclosure
Uptime, incident, and on-call management. Better Stack provides status pages, incident management, and on-call scheduling for engineering teams.
View options with Better Stack
External site · Independent provider · We may receive a commission · Not a recommendation
FAQ
What does this tool tell you?
The Code Review Time Estimator computes review time from lines changed, file count, and complexity multipliers for security code, cross-component scope, and reviewer familiarity.
What affects the result most?
Review time model: base_time + (lines_changed × time_per_line) × complexity_multiplier. Complexity multipliers: cross-component changes ×1.5, security/auth code ×2.0, new patterns ×1.3. Optimal review session: 60-90 minutes max — defect detection drops significantly beyond 90 minutes.
How should I use the result?
The calculation is deterministic — the same inputs always produce the same output — so the most useful workflow is to vary one input at a time and see which factor moves the result most. That tells you where to focus your attention before committing to a decision.
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