PROJECT

Custom online customs duty calculator with automated exchange rate updates

Development of an HTML + JavaScript calculator, Setup on live website, Currency exchange rate automation via PHP script, Localization support, Integration with MySQL for regular data storage

  • Industry: Customs brokerage
  • Latvia Location: Latvia
  • Delivery time: 2 weeks
  • Technologies: HTML, JavaScript
  • Rated: 5/5
1 month

Summary

Problem

EuroBrokers needed a way for users to calculate customs charges on their site.

Solution

2410 built a custom WordPress calculator using Excel formulas and live ECB exchange rates.

Result

Increased traffic, better leads, and user engagement within the first month.

Client story

EuroBrokers specializes in customs clearance for goods, vehicles, and parcels across Latvia. They needed a specialized online calculator to help users estimate the cost of customs services quickly and independently.

Their goal was to attract more qualified leads and reduce staff workload caused by unfiltered inquiries. Rather than relying on third-party tools that couldn’t meet their unique needs - such as syncing with real-time exchange rates - they approached 2410 for a fully custom solution.

The result helped engage clients, streamline communications, and bring in real leads from the start.

Project overview

2410 developed a tailor-made online calculator for EuroBrokers to automate the estimation of customs duties, VAT, and total charges based on user input. Built using the company’s own Excel-based formulas, the calculator integrates real-time exchange rates via the European Central Bank's XML feed and updates automatically each day.

To ensure maximum flexibility and brand consistency, 2410 created the calculator as a widget embedded directly into EuroBrokers’ WordPress backend using shortcode integration. This solution bypassed the limitations of third-party platforms, allowing seamless adaptation to the site's design and offering a white-label, performance-optimized tool.

The result is an interactive, multilingual calculator that enhances user experience, filters high-intent visitors, and reduces unnecessary workload for staff. Keywords like "customs clearance calculator," "VAT calculator Latvia," and "import duty estimation tool" are naturally incorporated into the platform, improving SEO and drawing in targeted organic traffic.

Very detail-oriented, understood all the requirements and implemented the calculator exactly how I wanted. Thanks 2410, fast delivery.

- romansantonovs, EuroBrokers

Key features delivered

  • Custom-built calculator with sum and charges breakdown
  • Currency conversion using ECB feed
  • Daily auto-update of exchange rates
  • Localization-ready text labels
  • Full integration into WordPress page
  • Data saving to MySQL
  • Responsive design
  • Admin-editable content via dictionary system

Technology stack

HTML JavaScript PHP MySQL ECB XML feed

The result

From Excel Formulas to a Revenue-Generating Calculator

In under a week, 2410 transformed EuroBrokers’ static Excel-based customs formulas into a fully functional online customs calculator. The result is a dynamic, multilingual tool that enhanced user engagement, improved SEO visibility, and generated quality leads.

Online calculator on the brokerage company website

Online calculator on the brokerage company website

Customs calculator integrated into the EuroBrokers website

Increased Engagement & Better Leads

Immediately after publishing the calculator, EuroBrokers noticed:

  • Higher user engagement on the website
  • Increased organic search traffic for keywords like "calculate customs duty Latvia", "Latvia VAT calculator online", and "import tax estimation tool"
  • A noticeable rise in relevant client inquiries from visitors who had already calculated costs
Tip: By answering “How much does this service cost?” instantly, the calculator works as a pre-qualified lead form.

Technical Accuracy & Real-Time Rates

One of the core features behind this success is the integration with European Central Bank's live XML feed, which updates exchange rates automatically and powers accurate real-time calculations.

ECB exchange rate XML feed being parsed and used in the calculator logic

ECB exchange rate XML feed being parsed and used in the calculator logic

ECB exchange rate XML feed being parsed and used in the calculator logic

What the Calculator Delivers

With this tool, users can independently calculate customs taxes without contacting a manager. The following fields are required:

  1. Currency choice
  2. Cost of goods
  3. Insurance and delivery fees
  4. Origin of goods (EU or non-EU)
Initial data used for calculator development from EuroBrokers

Initial data used for calculator development from EuroBrokers

Initial logic and formula basis supplied by EuroBrokers

Business Impact

  • Users arrive with clear expectations and price understanding
  • Conversations now focus on solutions, not just explanations
  • Real client inquiries appeared within the first month
Note: The tool helped filter out non-target users, reducing unnecessary load on staff.

Conclusion
The custom-built customs clearance calculator not only simplified service estimation for EuroBrokers’ clients but also worked as an SEO booster, lead qualifier, and conversion enhancer—a compact solution that delivered big results.

Thinking about building a similar system?

These questions are based on what clients typically ask when considering development of a custom business calculator, especially when they need live data integration, a white-label approach, or WordPress compatibility. If you’re planning to build a tailored system for your services, this is for you.