Free GHG Emissions Calculator

A fast, complete estimate of your greenhouse gas footprint across Scope 1, Scope 2, and all 15 Scope 3 categories. Enter your activity data and get instant CO2e results, ideal for an initial assessment before a full inventory.

• Scope 1: stationary and mobile combustion
• Scope 2: purchased electricity (location-based and market-based)
• All 15 Scope 3 categories, from purchased goods to investments
• Instant CO2e results across your full inventory
• Free to use, no credit card required