If you’re a beginner eager to dive into Flutter development, building a calculator app is the perfect project to start with. This Flutter Calculator App Source Code helps you create a functional calculator that performs basic arithmetic operations such as addition, subtraction, multiplication, and division — all within Android Studio using Dart and Flutter.
Why Choose This Flutter Calculator Project?
Creating your own calculator app from scratch gives you hands-on experience with key Flutter concepts such as:
- Widgets – Learn how to use essential widgets like `Row`, `Column`, and `GridView.builder`.
- Functions in Dart – Understand how to structure your app logic using functions.
- Conditional Statements – Practice using `if-else` logic for calculation and button interaction.
- State Management – Explore how to manage and update app state in real-time.
- User Interface Design – Build an intuitive UI for a seamless user experience.
This project is simple enough for beginners, yet challenging enough to introduce crucial programming skills you’ll need for more advanced Flutter applications.
App Features
Clean and user-friendly interface
Supports:
- Addition (`+`)
- Subtraction (`-`)
- Multiplication (`×`)
- Division (`÷`)
- Grid layout for calculator buttons using `GridView.builder`
- Real-time display of input and output
- Minimalist and responsive design
What You’ll Learn
By completing this project, you will:
- Understand the structure of a Flutter app and the role of widgets
- Get comfortable using stateless and stateful widgets
- Practice directory and package management in Flutter
- Learn how to capture and manipulate user input in real time
This calculator app also helps you build a strong foundation in mobile app development — making your next Flutter project much easier.
Project Requirements
Before you get started, make sure you have:
- Flutter SDK installed on your machine
- Android Studio (or VS Code with Flutter extensions)
- Basic understanding of Dart programming language
Download Flutter Calculator App Source Code
Ready to build? Download the complete Flutter Calculator App Source Code directly from GitHub and start developing today!
Final Thoughts
Whether you’re learning Flutter for the first time or brushing up on app development skills, this project is an excellent starting point. The calculator app provides practical experience with Dart functions, widget layout, and UI design — all essential parts of mobile app development.
Take your first step toward becoming a Flutter developer today!
