Free Sustainability Tool
Email Carbon Footprint Calculator
Estimate campaign-level CO2 emissions from send volume, average email size, and server region. Use the report to guide greener email marketing decisions and offset planning.
Campaign inputs
Enter one campaign at a time for precise reporting. You can also use monthly totals for directional planning.
Typical US/Canada blended grid profile.
Campaign report
Estimated carbon impact
Efficient Campaign
Healthy emission efficiency with room for incremental optimization.
At 150,000 emails and 95 KB average size, your model estimates 49.87 kg CO2e for this campaign.
Sustainability badge rubric
Badge is assigned from grams CO2e per email, so teams can track trend improvements over time.
BadgeCO2e per emailInterpretation
Low-Impact Campaign<= 0.25 gHighly efficient campaign profile.
Efficient Campaign0.26 - 0.50 gGood baseline with optimization headroom.
Moderate Impact0.51 - 0.90 gAverage impact, improve through design + targeting.
High-Impact Campaign> 0.90 gReduce payload and improve segment quality.
How to reduce email environmental impact
To lower campaign emissions, compress image-heavy templates, remove unused blocks, and send to narrower, high-intent segments. Smaller messages and better targeting improve both sustainability and deliverability.
For a full decision view, combine this with your Email ROI Calculator so each campaign is measured on both profitability and environmental impact.
This calculator provides directional estimates, not audited lifecycle accounting. If you need compliance-grade reporting, pair this with your infrastructure provider's verified carbon disclosures.