Business carbon footprint calculator & accounting software.

To calculate your business carbon footprint, sign up for free, map your available data to specific emission categories across your locations, then upload supporting documents like energy bills and fuel cards. CO₂ Expert handles the rest — automatically calculating Scope 1, 2, and 3 emissions and producing a full company carbon footprint report.

CO₂ Expert is a free business carbon footprint calculator that uses the most reliable methods of measuring a carbon footprint aligned with international frameworks such as the GHG Protocol, ISO 14064, and PAS 2060, and offers support from our carbon footprint experts at every step.

Scope 1, 2, and 3 emissions are the three categories defined by the GHG Protocol Corporate Standard. Scope 1 covers direct emissions from sources your business owns or controls, such as company vehicles and on-site fuel use. Scope 2 covers indirect emissions from purchased energy, mainly electricity and heat. Scope 3 covers all other indirect emissions across your value chain, including business travel, purchased goods, transport, and supplier activity. 

Tracking all three is essential for credible GHG Protocol reporting and is increasingly required for carbon footprint supply chain management, ESG disclosures, and frameworks such as CSRD.

Yes. The CO₂ Expert tool complies with the GHG Protocol Corporate Standard, ISO 14064, and PAS 2060, the three international frameworks that underpin credible corporate carbon accounting. That means the methodology, emission factors, and reporting structure are aligned with what auditors, regulators, and rating agencies expect.

That means your CO₂ Expert carbon footprint report is audit-ready and recognised by stakeholders that require GHG Protocol reporting, and our carbon footprint experts can validate your data if you need an additional layer of assurance.

The timeline to generate a carbon footprint report depends on the size of your organisation, the complexity of your operations, and how much data you have ready. For a small to medium-sized enterprise using our automated tool, standard Scope 1 and 2 emissions can be mapped and reported in as little as 2 to 4 weeks.

If your business requires a comprehensive analysis that includes Scope 1, 2, and 3 emissions, which includes a deep dive into carbon footprint supply chain management—the process typically takes 6 to 8 weeks.

To get an audit-ready, validated carbon footprint report that is compiled by our carbon footprint experts, it usually takes between 6–10 weeks to complete.

At CO₂ Expert, our pricing is tiered to match the scale of your business operations. Calculating a company carbon footprint requires different levels of data ingestion depending on your industry. We offer three tailored pricing structures:

• GETTING STARTED: FREE, and perfect for businesses looking for an easy-to-use business carbon footprint calculator to track baseline operational data: Scope 1 and 2 emissions, with unlimited users, measurements, and locations.
• CARBON EXPLORER: Designed for organisations requiring advanced carbon footprint accounting, with full Scope 1, 2, and 3 emissions, reduction target setting, and carbon emissions reporting.
• EXPERT INSIGHTS: Tailored specifically for enterprises looking for ISO-validated reporting to comply with stakeholder, CSRD, or ESG reporting requirements. This plan offers full support and data validation from our carbon footprint experts.

Pricing ranges between €499–€6,000, depending on your organisation complexity.

Yes, you can confidently track and set emissions reductions targets and offset your carbon footprint through the CO₂ Expert platform.

Our platform helps you identify emissions hotspots, providing a base for actionable steps you can take to reduce your carbon footprint at the source. For the residual emissions you cannot yet eliminate, CO₂ Expert provides direct access to a portfolio of independently verified, high-integrity carbon credits. Every project is strictly vetted for quality, and offers measurable environmental and socio-economic co-benefits, helping your business achieve its net-zero goals with total transparency.