Formula
Total tCO₂e = (electricity × factor + fuel × factor + travel × factor) ÷ 1,000
What the result means
The result is an activity-based estimate for the three included sources. It can serve as a transparent starting boundary, but it is not a complete organizational inventory unless all material sources are represented.
Use current factors from an authoritative inventory source and document their year, geography, units, and greenhouse-gas coverage. This tool does not assign formal Scope 1, 2, or 3 classifications.