UK Government conversion factors · 2025 · Full set

GHG Conversion Factor Selector

Every published factor from the 2025 full-set workbook (3,123 factors across 33 categories) is built into this file. Search or drill down to a factor, enter your activity data, and build an emissions inventory.

1 · Choose a conversion factor

Type to search all factors, or drill down through the dropdowns.
Select a category to begin, or use the search box above.
 

2 · Inventory

Line items you have added, with totals by scope.
Total
0
kg CO2e
Scope 1
0
kg CO2e
Scope 2
0
kg CO2e
Scope 3
0
kg CO2e
Nothing added yet. Pick a factor above, enter a quantity, and add it here.
Factors: UK Government GHG Conversion Factors for Company Reporting, 2025 (full set, v1). SECR kWh categories convert activity data to energy (kWh), not emissions, and are totalled separately. Outside-of-scopes factors are biogenic CO2 reported separately from scopes 1–3.