Flaky Test Cost Calculator

Calculate how much flaky tests are costing your engineering team in wasted CI and developer time.

CI runs per day

1 20 200

Average CI duration (minutes)

1 15 60

Flaky test rate (%) Industry avg: 13-16%

1% 15% 50%

Developer hourly rate ($)

$25 $75 $250

CI provider

Monthly Cost Breakdown

Wasted CI minutes

1,350 min

CI cost wasted

Developer hours wasted

45 hrs

Developer cost wasted

$3,375

Total monthly cost

$3,383

Annual cost

$40,596

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Gaffer tracks test stability across runs and identifies flaky tests before they waste more of your time.

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Calculations assume a 1.5x rerun multiplier for flaky failures and 15 minutes of developer context-switch time per investigation. Industry data: Atlassian reports 15% of Jira test failures are flaky (150,000 hours/year wasted). Google and Microsoft report similar rates of 13-16%.