Code Review Time
Estimate how long a code review takes with multiple reviewers.
About Code Review Time
The time each reviewer takes scales with the change size, and multiplying by the number of reviewers gives the total consumed. Review is a real hidden cost of shipping code, so sizing it helps balance review thoroughness against delivery speed.
Formula
Code Review Time
Review minutes = lines / 100 x minutes per 100; total = x reviewers
- reviewers
- People reviewing the same change
Worked example
With the default values below, Code Review Time returns Minutes per Reviewer of 30.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Lines changedminimum 0
- 300
- Minutes per 100 linesminimum 0
- 10
- Reviewersminimum 1
- 2
Results
- Minutes per Reviewer
- 30.0
- Total Review Minutes
- 60
- Total Review Hours
- 1.00
Step by step
- 1Values used
- 2Code Review Time
- 3Minutes per Reviewer= 30.0
- 4Total Review Minutes= 60
- 5Total Review Hours= 1.00
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Code Review Time calculated?
Review minutes = lines / 100 x minutes per 100; total = x reviewers The time each reviewer takes scales with the change size, and multiplying by the number of reviewers gives the total consumed.
Why does Code Review Time matter?
Review is a real hidden cost of shipping code, so sizing it helps balance review thoroughness against delivery speed.
What values do I need to enter?
This calculator takes 3 inputs: Lines changed, Minutes per 100 lines, Reviewers. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.