Estimate total event CO2 emissions from attendee travel, venue energy, catering, and swag. Get instant sustainability recommendations and offset estimates.
Enter attendee count, travel, and event details
See CO2 breakdown by travel, venue, catering, swag
Get offset cost and green event badge
Enter your details and click Calculate Carbon Footprint to see total emissions, offset estimates, and sustainability tips.
Total CO2 Emissions
0.00
tonnes CO2e
$0 - $0
Typical verified offsets at $5-$30 per tonne CO2e.
$0 - $0 across the wider $0-$50 per tonne market range.
Equivalent To
0
average car trips (100 miles each)
Trees Needed
0
trees to absorb this CO2 in one year
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Attendee travel is usually the largest source, followed by catering and venue energy. This calculator helps you identify the biggest emission category for your event.
This tool gives a directional estimate based on standard emission factors. Use it for planning and comparison across scenarios, then refine with supplier-specific data when available.
Promote rail and carpooling, select a renewable-powered venue, choose plant-forward catering, and avoid unnecessary single-use swag. These actions often cut emissions significantly.
Prioritize reduction first, then offset unavoidable emissions with high-quality verified projects. Offsets are most effective when paired with measurable reduction goals.
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