Investment Calculator
Angular
Tech Stack & Features
- Angular
- CSS
Integrations:
Angular
About this Project
This web application is a user-friendly investment calculator built with Angular and TypeScript, designed to help users model and plan their long-term financial growth. Users can input variables like initial investment, regular contributions, return rates, and time horizon to instantly see projected outcomes — including total value, interest earned, and growth over time. Thanks to Angular’s reactive data binding and modular architecture, the calculator delivers smooth, real-time updates as inputs change. The interface remains clean, responsive, and easy to navigate whether on desktop or mobile. The project demonstrates how structured front-end frameworks can simplify financial computations, making complex investment planning accessible and understandable to anyone.
Challenges
Implementing accurate financial calculations
This required careful handling of compounding formulas, edge cases, and floating-point precision to ensure the projections were reliable.
Managing user inputs cleanly
Doing this across multiple fields—while keeping the calculator responsive—made it important to avoid unnecessary re-renders or overly complex component logic.
Ensuring real-time updates
Managing these without performance issues required a thoughtful approach to how state flowed through the UI.
What I Learned
While building this project, I gained a much deeper understanding of Angular’s modern state management patterns, especially signals and services. Signals helped make the calculator feel instantly responsive, allowing real-time updates without overusing change detection or tying state directly to components. I also learned how to structure business logic inside Angular services, keeping components lightweight and making calculations easier to test and maintain. Together, these patterns improved how I architect small-to-medium Angular apps—leading to clearer data flow, more predictable UI changes, and a cleaner separation between presentation and logic.