GHG Protocol Aligned

Estimate your
Scope 1 emissions

Calculate CO2e from fuels and sources your organisation owns or controls directly. Add entries across all three categories and download a report when you're done.

  • Stationary Combustion — boilers, generators, furnaces
  • Mobile Combustion — owned or leased vehicles
  • Fugitive Emissions — refrigerant leaks from AC/refrigeration

Scope 3 disclaimer: This calculator covers Scope 1 only. For value-chain (Scope 3) emissions, use our Customized Scope 3 Model — not a generic online calculator.

Stationary
Mobile
Fugitive

Stationary Combustion

Factors are indicative placeholders — replace with your verified emission factor source (DEFRA / IPCC / CEA) before using in official reporting.

Mobile Combustion

Covers company-owned or leased vehicles (cars, forklifts, generators running on transport fuel).

Fugitive Emissions

Estimate leaked/topped-up refrigerant volume from AC and refrigeration equipment servicing records.

Your Entries

0 entries

No entries added yet. Choose a category above and add your first entry.

Organisation Details

— Fill once, used in all calculations & reports. Inputs auto-save in this browser.

Total Scope 1 Emissions
0.00kg CO2e
In Tonnes
0.00t CO2e
Need Verified Reporting?

Talk to us about full GHG inventory support

This calculator uses indicative factors for quick estimation. For audit-ready Scope 1–3 reporting, our consultants can help.