This is a desktop application built in C# with WPF that converts values between different currencies using static exchange rates. It provides a clean and simple interface with drop-down menus for selecting source and target currencies and a text box for entering amounts. The application supports multiple currencies, validates input to allow only numbers and decimals, and automatically formats numbers with commas for readability (for example, 12,121.32). Conversion results are displayed with the selected currency and up to three decimal places. It also includes convenient Clear and Swap buttons for usability and styled buttons with rounded corners for a modern look. Through this project I demonstrated skills in WPF interface design, data binding with DataTable, event handling, regex-based input validation, and real-time input formatting.