FREE Carbon Factors Database

Our experts have carefully curated a database of Carbon Emissions Factors to help you complete your Scope 1, 2 and 3 Carbon Footprint

Updated regularly with the latest Official UK Government Data

DESNZ Factors

30,000+
CO2e factors

  • Official UK Gov Factors for Company Reporting
  • Coverage: 2014-2025
  • Updated: 10 June 2025
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DEFRA Factors

3,000+
CO2e factors

  • DEFRA £ spend Factors for Scope 3 footprinting
  • Coverage: 1993-2025
  • Updated: 14th May 2025
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National Grid Factors

200,000+
CO2e factors

  • Half Hourly Factors for Scope 2 Footprinting
  • Coverage: 2009-2025
  • Updated: 02 Oct 2025
Info

Please consider visiting the official government website to ensure you are adequately informed regarding appropriate use the Conversion Factors

https://www.gov.uk/government/collections/government-conversion-factors-for-company-reporting