This carbon calculator starts from 2018. If you’re measuring a baseline pre-2018 you need to use the UK government’s emissions factors for the correct year.
We’ll update this carbon calculator every year, so make sure to come and download the most up to date version whenever you’re using it.
We constructed the employees working from home information using EcoAct’s whitepaper.
Our purchased goods and services emissions factors have been created by using an average of the below items’ emissions factors. For 2023 onwards, we’ve updated the calculator so you can measure purchased goods separately to purchased services to give you a more accurate measurement.
This was last updated in July 2024 by Heart of the City. We’ve created these resources for individual SMEs to use. None of our content is to be adapted, reused or repurposed for commercial use.
Climate for SMEs: 4 Steps to Action is funded by the City of London Corporation in support of its Climate Action Strategy targets for a net zero and resilient Square Mile.
Our toolkit is free, created in collaboration with sustainability experts, and breaks down into four easy-to-follow modules - cutting through the jargon, building your business case, measuring your carbon footprint, and creating your action plan. It’s accessible, achievable, and designed to be worked through at your own pace.
Supported by the City of London Corporation and City Bridge Foundation.
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