GHG Emissions Calculator

Calculate Scope 1, 2 & 3 emissions using IPCC AR6 guidelines. 60+ countries, multiple fuel types, ESG-ready PDF/Excel reports.

Read our complete guide

IPCC 2006 Guidelines | AR6 GWP Values

Tier 1 methodology • Stationary & Mobile Combustion • Fugitive & Process Emissions • All 15 Scope 3 Categories

Scope 1Scope 2Scope 3

Add Emission Source

Direct Emission Source

No emission sources added

Add fuel, energy, or activity sources to calculate your greenhouse gas emissions

About the free GHG Emissions Calculator

Calculate Scope 1, 2 & 3 emissions using IPCC AR6 guidelines. 60+ countries, multiple fuel types, ESG-ready PDF/Excel reports. The ToolsEdits GHG Emissions Calculator runs online in your web browser, so there is nothing to download or install. It works on Windows, Mac, Linux, Android and iPhone, and it is completely free to use with no sign-up required.

Wherever possible, your data is processed directly on your own device, which keeps your files and information private and makes results appear instantly. The ghg emissions calculator is part of our Converters collection, built for students, professionals and businesses who need fast, reliable results without paying for expensive software.

How to use the GHG Emissions Calculator

Enter your data or upload your file in the tool above.
Adjust the options and settings to match what you need.
Click the action button to get your result instantly.
Copy, download or share the result — then start again as many times as you like.