GitHub Actions Cost Calculator

GitHub Actions billing has four moving parts most teams underestimate: minutes, OS multiplier, matrix expansion, and artifact storage. This calc rolls them all up and compares against self-hosted.

GitHub planRunner OSRunner sizeWorkflow runs per day: 60Working days per month: 22Avg minutes per job: 8Parallel jobs per run: 1Matrix expansion multiplier: 1Artifact storage (GB): 12

Total minutes used / month

10,560

Billable minutes (after included)

7,560

Compute cost

$60.48

Total monthly cost

$60.56

Self-hosted comparison

Estimated self-hosted runner fixed cost (USD/month): $0

Hosted (Actions)

$61

Self-hosted

Savings if you switch

$61/mo

Self-hosted figure should include EC2/baremetal + ops overhead + on-call. Most teams underestimate ops by 2x.

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