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Tech & DeveloperWebsite Carbon Calculator
Estimate CO2 emissions per page visit from approximate page size.
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CO₂ per page visit
—Monthly CO₂
—Annual CO₂
—Trees to offset/year
How to Use
- Enter page URL (optional) or page size in MB.
- Enter estimated monthly pageviews.
- See CO2 per visit and annual impact.
Website carbon estimate
CO₂ per visit ≈ Page size (MB) × 0.6 g. Alternatively, ~0.81 g CO₂ per GB transferred. Reduce page weight with compression, lazy loading, and efficient hosting to lower emissions.
Frequently Asked Questions
How is CO2 estimated?
We use ~0.6 g CO2 per MB of data transferred per page load, based on average grid carbon intensity.
How many trees offset this?
One tree absorbs roughly 21 kg CO2 per year. We show equivalent trees needed to offset annual emissions.
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