Basic Calculator – Add, Subtract, Multiply, Divide Easily
Use this free basic calculator to solve everyday math problems instantly — works offline and is fully responsive.
Need a fast and easy-to-use basic calculator online? OmniCalc.site brings you a modern, touch-friendly, and offline-ready calculator for standard arithmetic operations. Perform addition, subtraction, multiplication, and division without installing anything. It’s the ideal standard calculator web app for students, small business owners, and anyone who needs a reliable simple calculator tool.
Why Use Our Free Basic Calculator?
- Perform all simple arithmetic operations instantly and accurately.
- User-friendly – a straightforward and clutter-free experience.
- Mobile-optimized interface with large, touchscreen-friendly buttons.
- 100% offline functionality lets it work anywhere, without internet.
- Designed for speed, simplicity, and accessibility (A11Y) for all users.
- It's the perfect add subtract multiply divide calculator for quick tasks.
Frequently Asked Questions
Is this calculator free and offline?
Yes! OmniCalc.site’s basic calculator is completely free to use. It's a Progressive Web App, so once it's loaded, it works 100% offline without needing an internet connection.
Can I use it on my phone?
Absolutely. This standard calculator web app is designed to be fully responsive and mobile-optimized. All buttons are touch-friendly, and the layout adapts perfectly to any screen size, from smartphones to desktops.
What operations can I perform?
You can perform all standard arithmetic calculations. This includes options to add, subtract, multiply, and divide numbers, as well as calculate percentages easily.