Free Tool

CI Carbon & Cost Calculator

Estimate the CO₂ footprint and monthly compute spend of any CI run across 7 platforms. Powered by Cloud Carbon Footprint SPECpower benchmarks. No account required.

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10 min
1 min30 min60 min120 min
65%
10% (idle)65% (typical)100% (full)
1,000
1002,50010k20k
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Select a runner and duration, then click Calculate CO₂ to see the footprint estimate.

Track this across every run, automatically

EmitCI measures every workflow run in real time, alerts you when budgets are exceeded, and tracks progress toward your reduction goals.

Methodology: GHG Protocol Scope 3 Cat 3.3 · GSF SCI Specification v1.0 · IPCC AR6 GWP · Compute energy × region-specific PUE (1.09–1.58)

Carbon intensity from Electricity Maps across 75 cloud regions · Full methodology