Activity-Based Calculations
Learn how to calculate emissions using activity data and emission factors
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Section 4 of 5Calculating Emissions from Activities
Activity-based calculations are the foundation of carbon accounting. By multiplying measurable activities (like electricity consumption or miles driven) by appropriate emission factors, you can calculate greenhouse gas emissions.
The Basic Formula
Emissions = Activity Data × Emission Factor
This simple equation powers all carbon accounting calculations worldwide.
Interactive Activity Impact Simulator
Calculate real emissions from different scenarios. Select a scenario type, choose your region, and input activity data to see how emission factors translate into carbon footprints.
🏠 Household Activity Data
Emissions: 210 kg CO₂
Emissions: 4.85 kg CO₂
Emissions: 0.5 kg CO₂
Emissions: 156000 kg CO₂
How Calculations Work
Formula: Emissions = Activity Data × Emission Factor
• Activity data comes from your inputs (kWh, miles, kg, etc.)
• Emission factors are specific to fuel type and region
• Results are converted to annual CO₂ equivalent emissions
• Factors are updated regularly based on new research and data