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Flaky Test Cost Calculator

Put a dollar figure on flaky Playwright tests. See the debug hours, CI reruns, and engineer days they cost your team each year.

Your flakiness inputs

Drag the sliders. Cost updates live.

Live Calculation

Annual cost of flakiness

Total per year
$19,452
Engineer days lost
41
Debug time cost
$18,750
CI rerun cost
$702
Annual debug hours
325 h
Debug hours per engineer
0.8 / week

Where the cost comes from

96% debug · 4% CI

Why this number?

8 engineers each spend about 0.8 hours a week chasing flakes. At $58 per hour over 52 weeks, that adds up to $18,750 a year in debug time alone.Re-running each flaky build 2 times at $0.45 per run adds $702 in CI bills.The real cost runs higher once you count morale and context-switching, plus the bugs that ship behind ignored flakes. Assumes 52 working weeks and a 2080-hour work year.

How this works?

How the calculator turns your flakiness signals into a yearly dollar cost.

Debug time per year

We multiply flaky failures per week by the minutes spent chasing each one, then scale to 52 weeks. Team size only changes the per-engineer hours shown alongside the total.

Cost of that time

Each engineer hour is the average salary divided by 2080 working hours. Debug hours times that rate is the labor cost of flakiness.

CI rerun cost

Every flaky failure triggers reruns. We multiply flakes per week by reruns per flake by your cost per CI run, across the year.

What it adds up to

Labor cost plus rerun cost is your annual flakiness bill. We also show it as engineer days lost so you can size the fix.

FAQs

We divide the average annual salary by 2080 working hours (40 hours a week across 52 weeks). This gives the base labor cost per hour. Fully loaded cost including benefits and overhead is higher, so treat the result as a floor.