TL;DR:
In 2025, carbon footprint calculators are no longer a “nice-to-have”, they are the foundation for building a sustainable and future-proof business. This article compares top carbon footprint calculators, guiding you towards the best fit for your sustainability goals.
What is a carbon footprint calculator and why is it important?
A carbon footprint calculator (also known as carbon accounting software) helps your business measure, manage, and reduce CO₂ emissions. It automates data collection and turns complex environmental figures into actionable insights.
With the right carbon footprint calculator, you can:
Act on real data, not guesses.
For instance: does switching to electric vehicles reduce more CO₂ emissions than using refurbished laptops? A good carbon footprint calculator tells you instantly, so you can make smart fact-based decisions.Share progress with all stakeholders.
From employees and investors to regulators and customers, clear and visual reporting builds trust. Good tools make your impact easy to understand and communicate, and help you avoid greenwashing with verified, transparent data.Stay on track with your goals.
You’ll know where your biggest emissions come from, how far you’ve come, and which decisions make the biggest environmental (and financial) difference.Create support across your team.
When people see tangible results from sustainable changes, they’re more willing to take part. From the warehouse to the boardroom, shared understanding leads to shared ownership.
By turning complex climate data into accessible insights, a carbon footprint calculator becomes more than just a reporting tool. It’s how you take control of your emissions, build a future-proof strategy, and lead the change, not just follow it.
Explore Regreener’s Footprint Navigator
Why your business needs a carbon footprint calculator
“Now, sustainability is a competitive advantage. Soon, it will be a right to play.”
A carbon footprint calculator is more than a reporting tool. It’s the starting point for reducing emissions, cutting costs, and building a future-proof business. It turns your data into clear actions, and your climate ambition into visible progress.
But to really understand its value, we need to go a level deeper.
Measuring = knowing (and saving)
You can’t reduce what you don’t measure. A carbon footprint calculator gives you accurate insight into your emissions, from production to supply chain. That means you can act with confidence, and spot opportunities to increase profits while lowering your environmental impact.
Take Ridder Group, for example. They identified their biggest emission hotspots and reshaped operations based on the data. The result? A smaller footprint and lower costs.
Smarter decisions, faster
Are you on track to reach Net Zero? Which operations or suppliers are driving the most emissions? A good footprint tool gives you the answers fast, so you can focus on what really moves the needle.
Company-wide clarity
Change is easier when everyone understands the “why.” When teams see that one adjustment cuts 12% of emissions, they’re more likely to back it. Transparency turns into ownership, from operations to leadership.
Real stakeholder confidence
A good sustainability story needs numbers to back it up. A carbon calculator helps you create verified reports for customers, regulators, investors, and partners. These reports align with key sustainability frameworks and certificates like CSRD, the GHG Protocol, and SBTi.
No guesswork. Just real progress clearly reported.
The 10 best carbon footprint calculators for 2025
1. Regreener (🇳🇱 Amsterdam, NL)
Regreener’s Footprint Navigator puts everything in one place: track your emissions, reduce them, offset what’s left, and get expert help along the way. It works for any company size and is easy to use, no sustainability or accounting background needed.
Best for: Companies of all sizes looking for an easy-to-use, fully customizable solution.
Why Regreener’s carbon footprint navigator is #1
Regreener’s carbon Footprint Navigator is more than a carbon tracking tool. It’s your all-in-one climate control panel, built to make sustainability simple, insightful, and actionable.
Whether you're just starting or scaling fast, the tool grows with you. It’s designed for SMEs that want to take real action, without needing in-house climate expertise.
What sets it apart
✅ All-in-one functionality
From measuring emissions to reducing and offsetting them, everything happens in one place. No extra integrations, no tool overload.
Want to know more about our Climate Projects?
✅ Clear, compliant reporting
Generate reports that align with CSRD, GHG Protocol, and SBTi, instantly. Share impact visually with customers, regulators, and investors.
✅ Personalized to your business
Start with built-in datasets (like GHG Protocol) for instant results. Then easily add your own operations, products, and LCAs, so you can accurately map your company’s real emissions. No estimates, just insights tailored to your business.
✅ Built for teams, not just experts
No need for technical knowledge. The platform is designed to be used by everyone, from CFO to the operations floor. Shared dashboards help your whole team understand, collaborate, and act.
✅ On-demand expert support
Got questions? You get access to real climate consultants, no extra fees, no delays. Whether it’s strategy, data interpretation or next steps, we’re here to help.
✅ Transparent & flexible pricing
Your monthly fee is based on what matters: the size of your team and the complexity of your industry. No hidden costs, no surprises, just a pricing model that fits your business. Start at just €120/month.
Regreener: What you get
Simple to start. Powerful to grow.
Regreener helps your team act faster, reduce emissions smarter, and report with confidence. No steep learning curve, just the insights and support you need to move forward and make a real difference.
9 other carbon footprint calculators to compare
Here is how the rest of the market compares, so you can make a confident, well-informed choice.
2. Coolset (Amsterdam, NL)
Coolset is a straightforward platform that focuses on carbon accounting and reporting. It’s easy to use and suitable for companies with internal sustainability resources. However, it doesn’t include built-in reduction or offsetting support.
Best for: Mid-sized to larger businesses focused on compliance and reporting.
3. Plan A (Paris, FR)
Plan A provides a comprehensive sustainability platform that automates the measurement of Scope 1, 2, and 3 emissions. It offers tools for carbon accounting, reporting, and decarbonization planning. The platform is designed for companies with advanced ESG strategies and may require onboarding for optimal use.
Best for: Companies with complex supply chains and advanced ESG strategies.
4. Ecologi (Bristol, UK)
Ecologi’s offers a platform that enables businesses to measure their emissions and take climate action by supporting vetted projects such as reforestation and carbon avoidance. While its strengths lie in communication, visual storytelling, and impact transparency, the platform now also includes emissions tracking features — though it remains less focused on detailed reduction planning or full carbon accounting.
Best for: Purpose-driven brands that want to measure emissions and easily communicate their climate contributions.
5. Groenbalans (Utrecht, NL)
Groenbalans provides tailored advice and is often used in public-sector contexts. While it includes offsetting and expert support, it relies more on consultancy and lacks a built-in reduction pathway.
Best for: Organizations looking for a combination of carbon management tools and expert consultancy.
6. Hedgehog (Amsterdam, NL)
Hedgehog offers a carbon management platform that helps organizations monitor, manage, and reduce their carbon emissions. The platform includes tools for carbon accounting, reporting, and planning, with a focus on ease of use. It also provides consultancy services to support sustainability efforts.
Best for: Organizations looking for a user-friendly carbon management tool with optional consulting support.
7. Anthesis (Farrington, UK)
Anthesis is a global sustainability consultancy offering services that include carbon footprint measurement and reduction strategies. While they provide tools like the Flight Carbon Calculator for business travel emissions, their offerings are typically integrated into broader, more expensive, consultancy projects rather than standalone platforms.
Best for: Corporations seeking comprehensive sustainability consultancy services
8. Sweep (Paris, FR)
Sweep offers a platform designed to help companies track and manage their carbon and ESG data. It supports collaborative workflows and provides tools for understanding value chain emissions and meeting disclosure requirements. While it facilitates reduction planning, it does not offer integrated offsetting options.
Best for: Mid-sized firms scaling their ESG maturity.
9. Net0 (Dubai, UAE)
Net0 provides an AI-driven platform for corporate sustainability, enabling organizations to measure, disclose, and reduce their carbon emissions. The platform focuses on automation and real-time insights but does not include integrated offsetting options or direct access to climate consultants.
Best for: Enterprises seeking to automate their sustainability processes and compliance.
10. Milieubarometer (Rotterdam, NL)
Milieubarometer is an online tool that allows organizations to calculate and monitor their environmental impact, including carbon footprint. It is user-friendly and widely used by Dutch municipalities and organizations beginning their sustainability journey. The tool primarily focuses on Scopes 1 and 2 emissions, with limited features for advanced carbon management
Best for: Local organizations starting to assess and manage their environmental impact.
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