Best 6 CO2 emissions calculators for transport and logistics in 2025

Whether you’re measuring emissions for the first time or you’ve been managing your company’s emissions for a while, having the right carbon emissions calculator can make your life a lot easier. And it can improve your chances of achieving your targets as companies that use carbon accounting software are 2.5x more likely to achieve their emission-reduction targets. 

But with so many options to choose from, which is the right CO₂ calculator for your needs? Read this article to learn more about the top 6 calculators for transport emissions, whether you work at a LSP, carrier, or shipper.  

TL;DR: Which carbon emissions calculator is the best option for you

There are hundreds of emissions calculators available to businesses, each with different levels of user-friendliness, features, pricing plans, and accreditations. To help you choose the best option, we’ve narrowed down a short list of 6 emissions calculators that are built to help LSPs, carriers, and shippers accurately measure their transport- and supply chain-related emissions. Here’s an overview of these 6 options:  

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If you would like more information about making the switch from excel spreadsheets or external consultants to CO₂ emissions calculator then read our recent article. 

Best CO2 emissions calculators for transport and logistics 

We’ll now go through each emissions calculator in more detail.

1. BigMile

BigMile provides a carbon accounting software with an in-built emissions calculator to help logistics service providers (LSPs), carriers, and shippers easily and accurately calculate and report on CO₂e emissions across any transport mode. It also offers an Emissions API that is integrated with over 30 transport management and supply chain systems. 

The calculation methodology is certified by international standards such as ISO 14083 and in alignment with the GLEC Framework, ensuring calculations are consistent, reliable, and in compliance with sustainability regulations like the CSRD or voluntary standards like the VSME Standard. 

With BigMile, companies not only get better visibility of their own supply-chain emissions, but they can also provide shipment-level reports to their customers through customizable dashboards and reports. 

Advanced analytics within the platform enable users to analyze historical emissions data and explore carbon reduction strategies through scenario modeling. This means that companies can pinpoint lower-emission transport routes and present them as options to their customers—cutting overall transport emissions while enhancing customer satisfaction.

Many leading logistics service providers already rely on BigMile to improve the quality of their reporting and reduce emissions, including leading logistics service provider (LSP), STEF. As Henk Jan Ouwerkerk explains: 

“We wanted to reduce our CO2 emissions and aim for a Lean & Green Star, but we weren’t tracking these emissions at all. BigMile gave us the calculations and reports we needed. Thanks to this, we’re now on our way to our third star.”

Website: https://www.bigmile.eu/ 

Best suited for: LSPs, carriers, and shippers who want to move beyond spreadsheets and simple calculators toward auditable, ISO 14083-compliant carbon accounting that doesn’t require huge investments in time, money, or upskilling. 

2. EcoTransIT World

EcoTransIT World is a long-standing emissions calculator developed in Germany and used by shippers, carriers, and logistics providers to measure their transport emissions. 

The emissions calculator is available online for one-off calculations, or with a licence for more regular use. It is built with an API-first approach, offering a range of APIs suitable for semi semi-automatic transport list calculations in CSV format to fully automatic solutions based on a Soap XML Web Service (WSDL). 

In addition to the software, EcoTransIT provides consultancy services to help companies analyze and report on their transport data.

Unlike others on this list, EcoTransIT is fully focused on emissions calculation rather than providing insights and reporting tools to help companies analyze their emissions data. 

Website: https://www.ecotransit.org/en/ 

Best suited for: Companies that primarily need a reliable, standards-based emissions calculator and are comfortable managing data through APIs or external consultancy, rather than using their own dashboards or built-in analytics.

3. Searoutes

Searoutes provides a carbon emissions calculator designed for shippers, freight forwarders, and logistics providers. Using advanced algorithms and datasets, the platform calculates transport-related emissions with precision and helps its users optimize transport routes for lower emissions. 

Built with an API-first approach, Searoutes connects directly with customers’ existing systems, allowing them to compare modes of transport and identify the lowest emissions option, as well as using historical route data to calculate the emissions of past journeys. 

While it works for multiple transport modes (sea, road, rail, air, and inland-waters), it specializes in ocean freight transport, offering specific APIs that give real-time and historical insights into vessel routing and trips. 

The Carbon Emissions API is particularly well-suited to companies that want to embed emissions calculations seamlessly into their own workflows rather than working with a separate platform focused on dashboards and reporting.

Website: https://searoutes.com/ 

Best suited for: Transport and logistics companies who want to embed emissions calculations into their existing systems via an API, and have less need for custom reports and dashboards to analyze, review, and share their emissions data. 

4. CarbonCare

CarbonCare offers a global CO₂ emissions calculator built specifically for transport and logistics companies. It covers all transport modes and uses a methodology that is aligned with the latest ISO 14083 standard and validated under Switzerland’s FAIR CARBON PLAYER framework. CarbonCare also provides an API that integrates with its customers' existing TMS. 

A free web tool is available for occasional calculations but regular users can purchase one of three license packages: offline BASIC-EXCEL, BUSINESS API, and FLEET analytics packages. The packages have a core price and additional services are available as needed, including analytics and data storage services, emissions certificates, project management, and ‘fleet values’ which uses actual consumption values from the customer’s vehicles.  

CarbonCare also gives its customers the opportunity to offset CO₂e emissions by purchasing CO2e certificates from certified climate protection projects. 

Website: https://www.carboncare.org/en  

Best suited for: Transport and logistics companies that need access to an emissions calculator covering multiple transport modes, but don’t need advanced customer-facing dashboards, detailed breakdowns of emissions data or in-depth scenario modeling.

5. Loginex

Loginex, developed by Visma Connect BV and consultancy firm UC Group, is a platform designed to help logistics companies accurately measure their emissions and comply with European regulations.

It calculates CO₂ emissions in line with the ISO 14083 standard, providing results at the level of shipments, customer, and transport modes. These insights are useful for both regulatory and client reporting, but also help users identify ways to reduce their overall carbon footprint with emissions reduction measures. 

In addition to audit-ready, compliant emissions reporting, the platform provides tools for supply chain optimization and benchmarking, helping users reduce their carbon footprint.

Website: https://loginex.ai/ 

Best suited for: Europe-based LSPs, carriers, shippers, and consultants that need a reliable, regulation-focused tool for emissions calculation and reporting.

6. In-house solution 

Despite the range of carbon accounting software available, some logistics and transport companies still choose to develop their own emissions calculator, whether that is a basic Excel spreadsheet or a custom-built software.

While this approach offers flexibility, it often comes with significant drawbacks. Excel-based methods require ongoing manual work and are prone to errors, while building a proprietary system demands considerable time, budget, and technical expertise to maintain.

With regulations like the CSRD expanding in scope and customers increasingly requesting shipment- and transport leg–level emissions data, maintaining an in-house tool is becoming more complex and less practical compared to using certified, purpose-built solutions. Find out more about making the switch from manual spreadsheet calculations. 

Best suited for: Companies with highly specific requirements for carbon accounting and the internal resources to build and maintain their own spreadsheets or systems.

How to choose the best CO2 emissions calculator for your needs

We’ve now walked through 6 options for calculating carbon emissions for logistics and transport companies, so which is the right option for you? Here are some factors to keep in mind when evaluating each emissions calculator. 

• Compliance with industry standards: confirm that the calculation methodologies are aligned with industry standards like ISO 14083 and independently certified. 
• Usability: request a demo of the calculator to see if it is intuitive and easy for teams to use.
• Data accuracy: check how data is inputted into the calculator and whether it supports primary data from transport legs (most accurate) rather than estimates. 
• Suitability for your operations: confirm that it calculates emissions for all your modes of transportation and gives the granularity you need.  
• Reporting capabilities: check whether it supports automated and customizable reports and dashboards to enable easy sharing of reports with clients and compliance with sustainability regulations like the EU’s CSRD.  
• Ease of integration: double check that the calculator can integrate with your existing systems and workflows and can be scaled up over time. 
• Transparent pricing: review the calculator’s pricing models and how pricing varies based on volume so that you find a package that works best for your activities. 

By considering each of these factors, you’ll be better equipped to select the best CO₂ emissions calculator for your needs. 

Why hundreds of logistics companies choose BigMile for calculating, analyzing, and reporting on their emissions 

If you’re looking for a CO₂ emissions calculator that goes above and beyond a basic online tool but is still easy-to-use, quick to set up, and cost-effective then BigMile is a great choice. Companies can choose between the BigMile Carbon Analytics SaaS platform or the Emissions API that integrates directly with existing TMS or supply chain software. 

BigMile simplifies carbon accounting for logistics and transport companies, delivering insights that help reduce emissions, offer greener transport options to customers, and ensure compliance with sustainability regulations and standards.

Unlike others on this list, BigMile gives users the flexibility to create custom dashboards and calculate emissions at shipment level. The calculation methodology is certified to international standards such as ISO 14083 and is fully aligned with the GLEC Framework. 

Want to join 200+ companies already using BigMile to accurately calculate their emissions? Book a demo today!

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Note: The information in this article is based on publicly available details at the time of writing (August 2025). Vendors may update their offerings, so we recommend checking the provider’s official website for the latest information.