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Web interface for EcoTransIT-based CO₂ calculator

UX/UI design and development of the user interface for the GreenCO2Check project built on the EcoTransIT API.

Carbon emissions calculator – Results

Explore instant CO₂ calculations for multimodal logistics

Our team continues to support the global shift toward sustainable transportation. As part of this effort, our engineers upgraded the user interface of a web-based carbon calculator for Green Worldwide Shipping. This enhanced tool enables customers to effortlessly calculate CO₂ emissions associated with complex multimodal transportation, including sea, air, rail, and road freight combinations. By providing transparent and precise emissions data, the application empowers users to make more environmentally conscious logistics decisions.

What were the project challenges?

The client set out to modernize its outdated emissions calculator by designing a more intuitive, reliable, and visually engaging UX/UI. One of the requirements was integrating the EcoTransIT API, which provided the core emissions calculations.


The main UX challenge was creating a streamlined flow that could support complex, multi-leg journeys across various transport modes while keeping the route-building process efficient and user-friendly. We focused on simplifying inputs, enhancing usability through smart location suggestions, and ensuring a smooth, responsive interaction model that made complex functionality feel simple.

Client overview

Green Worldwide Shipping is a U.S.-based, privately owned logistics company founded in 2008. It provides comprehensive services including air and ocean freight, warehousing, customs brokerage, and time-critical aviation logistics.


The company emphasizes sustainability, participating in initiatives such as the Zero-Emission Maritime Buyers Alliance and the GMA Trucking Buyers' Alliance to promote eco-friendly transport. Recognized as a 2025 G75 Green Supply Chain Partner and a Great Place to Work, Green Worldwide Shipping is dedicated to delivering efficient, ethical, and environmentally responsible logistics solutions.

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We implemented the adaptable interface for calculating emissions


  • Improved customer experience. Clients can calculate emissions for multimodal routes in under 2 minutes, and auto-complete logic fills in missing routes.

  • Scalable architecture. The backend system remains robust and adaptable for future scalability.


  • Support for green logistics strategy. Enables clients to make data-driven, eco-conscious shipping decisions.

  • Reduced support overhead. Decreased the number of support requests related to emissions calculations.

The upgraded carbon calculator delivered by Adexin provided immediate and measurable value to Green Worldwide Shipping in terms of client engagement. The intuitive interface, combined with emissions calculation logic provided by EcoTransIT, made the process fast and dependable. 

How it works

Carbon emissions calculator – Routes
Carbon emissions calculator – Routes
Carbon emissions calculator – Results
Carbon emissions calculator – Results

Technology stack

The combination of technologies we used to complete this task.

Typescript
Node.js
React

Client's review

5
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