Use carbon as one placement input
A lower grid-intensity estimate can help shortlist locations. It does not establish the emissions of a particular workload: utilisation, hardware efficiency, electricity procurement and service design also matter. Check performance, resilience, data location requirements and price alongside this signal.
Read the source and its date
This snapshot was observed 2026-10-08. GCP values come from Google; AWS and Azure estimates come from Cloud Carbon Footprint. Source years differ, so small cross-provider differences should not be treated as precise comparisons. These are grid estimates in gCO2eq/kWh, not real-time readings, data-centre measurements or a verified emissions-accounting result. Unknown regions are excluded from the lists below.
Lowest recorded estimates: AWS
Among the regions covered by this dataset:
- eu-north-1 (Europe (Stockholm)): 8 gCO2eq/kWh
- sa-east-1 (South America (São Paulo)): 64 gCO2eq/kWh
- eu-west-3 (Europe (Paris)): 74 gCO2eq/kWh
- ca-central-1 (Canada (Central)): 115.4 gCO2eq/kWh
- us-west-1 (US West (N. California)): 298.7 gCO2eq/kWh
Lowest recorded estimates: Azure
Among the regions covered by this dataset:
- swedencentral (Sweden Central): 5.7 gCO2eq/kWh
- francecentral (France Central): 51.3 gCO2eq/kWh
- brazilsouth (Brazil South): 61.7 gCO2eq/kWh
- canadacentral (Canada Central): 120 gCO2eq/kWh
- uksouth (UK South): 225 gCO2eq/kWh
Lowest recorded estimates: GCP
Among the regions covered by this dataset:
- northamerica-northeast1 (Montréal): 11.4 gCO2eq/kWh
- europe-west6 (Zürich): 21.2 gCO2eq/kWh
- europe-north1 (Finland): 29.8 gCO2eq/kWh
- southamerica-east1 (São Paulo): 73.3 gCO2eq/kWh
- northamerica-northeast2 (Toronto): 74.2 gCO2eq/kWh
Compare the cost of your shortlisted regions
Use the calculator to compare the exact instance you need. Its carbon preference adds a relative penalty to the ranking; it does not change the displayed provider price or turn the estimate into a carbon charge. The region ranked first with this preference may cost more than the lowest-price region. Benchmark the shortlist before moving a workload.
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