CalibroActivity-based inputs
Enter quantities such as passenger kilometres, kilowatt-hours, room nights, meals, freight tonne-kilometres and waste weight.
Event emissions calculator
Carbon Calculator
Calculate an event footprint from activity data and documented estimates.
How the module works
Use category-specific inputs for travel, venue energy, accommodation, catering, logistics, materials, waste and digital participation.
Estimate when data is missing
Use documented proxy values where actual data is not yet available, with data quality shown in the event record.
Review the result
Compare category totals, the largest sources, emissions per attendee and the residual quantity that may require allocation.
Data requirements
Keep the inputs specific and reviewable.
The event record retains the operational inputs and supporting assumptions that feed this stage.
- Attendance and travel mix
- Venue electricity or size proxy
- Room nights
- Meal mix
- Freight, materials and waste
Interactive calculator demo
Estimate an event footprint.
Move the sliders and choose a venue and menu to see how the event estimate changes.
Event Carbon Footprint Estimates
Carbon Footprint
259.7 tCO₂e
Per attendee
866 kg CO₂e
Venue Electricity
231 kWh
Emissions by category
259.7tCO₂e
Attendee travel254.48 t
Accommodation3.91 t
Catering1.05 t
Venue energy0.19 t
Waste0.05 t
Freight & logistics0.01 t
Materials & production0.01 t
Other assumptions
- Venue size
- 660 m²
- Hotel room nights
- 146
- Waste
- 165 kg
- Freight and materials
- Planning estimate
Start managing your event carbon footprint.
Create the event, calculate emissions, plan reductions and maintain a documented path from residual emissions to retirement.