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$
USD
I will build python desktop app excel automation calculator landed cost duty logistics
Favour
About this gig
Your ops team shouldn't be trusting million-dollar import margins to a fragile, broken Excel sheet.
I build custom, offline Python desktop calculators that compute exact landed costs handling the complex logistics math (container vs palletized, floor-loaded, LCL/FCL) that standard spreadsheets miss.
WHAT YOU GET:
CORE ENGINE: FOB, CIF, duty rates, tariffs, and customs fees.
LOGISTICS MATH: Container vs palletized volume, floor-loaded optimization, warehouse handling rates.
DESKTOP PACKAGING: Standalone Windows .exe (Standard+) so your warehouse manager can run it without installing Python.
BATCH PROCESSING: CSV import/export for high-volume SKU calculations
python desktop app, fob calculator, import duty, customs tariff, container vs palletized, floor loaded, warehouse rate, landed cost formula, cif calculator, freight cost, import export tool, inventory management, business calculator, offline software, pyinstaller, pyqt, customtkinter, wholesale ops, supply chain math, erp integration.
Message me with your current Excel formula, I'll map the Python logic before you order.
Get to know Favour
Favour
SENIOR WEB DESIGNER
- FromUnited Kingdom
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English, French, German
I am a Professional WordPress Website designer expert helping businesses, brands, bloggers and agencies build professional websites, that drive results and create a seamless shopping experience for customers. My expertise includes WordPress design, Peptide website, Elementor, WooCommerce, website redesign, landing pages, speed optimization, SEO setup, bug fixing, theme customization, plugin configuration, website migration, security, membership sites, booking systems and maintenance. I deliver responsive, user-friendly and conversion-focused websites tailored to your goals.
My Portfolio
FAQ
Do I need Python installed to run the app?
No. Standard and Premium packages are compiled into standalone .exe files using PyInstaller. Your team just double-clicks and runs it.
Can it handle multiple currencies?
Yes. We can build in a manual exchange rate input field, or integrate a live currency API as a paid extra.
How do we update duty rates and warehouse fees?
The app includes a "Settings" menu where your ops manager can update default percentages and flat fees without touching the code.
Do you build web-based or cloud versions?
No. This gig is specifically for secure, offline desktop tools for warehouse and ops teams who need fast, local calculations.
Can it import my existing Excel data?
Yes, the Premium package includes CSV batch processing so you can calculate landed costs for 500+ SKUs at once.
What if our logistics math changes?
The source code is included in all packages. You can hand it to any Python developer to tweak, or hire me for an hourly update.
Which GUI framework do you use?
I use CustomTkinter or PyQt6 to ensure the app looks modern, clean, and professional not like a 1990s command prompt.
