ℹ️ About this calculator
This tool helps scientific conferences and events understand and reduce their environmental impact.
This calculator provides estimates based on public data.
👥 Event Overview
How many people are attending your event?
This helps calculate per-person impact
📊 Event Carbon Footprint
Total Emissions
0 kg
Per attendee: 0 kg
Meals & Refreshments
0 kg
0%
Transportation
0 kg
0%
Breakdown by type
🍽️ Meals & Refreshments
During the entire event
0 kg
0 kg
0 kg
0 kg
0 kg
0 kg
Meals impact: 0 kg
🚄 Transportation
Add each journey separately
Transport impact: 0 kg
🎯 A few orders of magnitude
Putting everyday choices in perspective
The carbon-neutrality target is 2 tonnes CO₂e per person per year.
🧭How is travel distance calculated?
For each journey, you only need to enter the straight-line distance.
| Mode | Correction applied to the straight-line distance |
|---|---|
| 🚍️ Bus | × 1.5 |
| 🚗 Car, carpool | × 1.3 |
| 🚇️ Subway | × 1.7 |
| 🚆 Train | × 1.2 |
| 🚶 Walking, 🚲 cycling, ⛴️ ferry | direct distance (no correction) |
| ✈️ Flight | + 95 km (flat) |
Emissions of a journey = adjusted distance × emission factor of the mode (per passenger-km) × 2 if round trip
Ferry is not covered by the Labos1point5 methodology.
Source: Labos1point5 — travel simulator
Additional computation details: GitHub: README.md