Research and analysis

Greenhouse gas reporting: conversion factors 2022

These emission conversion factors are for use by UK and international organisations to report on 2022 greenhouse gas emissions.

Documents

Conversion factors 2022: condensed set (for most users)

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Conversion factors 2022: full set (for advanced users)

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Conversion factors 2022: flat file (for automatic processing only)

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Conversion factors 2022: methodology

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Conversion factors 2022: major changes

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Conversion factors 2022: statement of voluntary compliance with the Code of Practice for Statistics

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Details

We provide 3 sets of conversion factors:

  • condensed set: this abridged version of the full set is easiest to navigate and most frequently requested. It’s recommended for most, and new, users of conversion factors
  • full set: all the available factors for the selected year, recommended for advanced users only due to the volume of information
  • flat file set: not recommended for most users, it contains the same information as the full set, but is arranged for automated processes. Flat files only available from 2014 onwards

The methodology paper explains how the conversion factors are derived.

New users should read the introductory guidance in the latest condensed set of conversion factors, then follow the text at the top of each conversion factor tab in the output files.

Repeat users should read the ‘what’s new’ sheet before using the conversion factors. This highlights the most significant changes to the conversion factors for that update, and so will ensure that reporting is consistent and comparable year-on-year.

Defra’s Environmental reporting guidelines provide more detail.

Updates to this page

Published 22 June 2022
Last updated 20 September 2022 + show all updates
  1. Flat file updated to correct one of the headings.

  2. First published.

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