ℹ️ How to Use This Calculator

This professional calculator offers both basic and scientific modes. Switch between modes using the buttons at the top. Your calculation history is automatically saved for easy reference.

🔢 Basic Mode

Perfect for everyday calculations with addition, subtraction, multiplication, division, and percentage operations.

🔬 Scientific Mode

Advanced functions including trigonometry, logarithms, powers, square roots, and mathematical constants (π, e).

💾 Memory Functions

Store and recall values with MC (Memory Clear), MR (Memory Recall), M+ (Memory Add), and M- (Memory Subtract).

📜 History

View all your previous calculations and quickly reuse results. History is saved locally on your device.

📱 Mobile Responsive

Works perfectly on all devices - smartphones, tablets, and desktop computers with touch and click support.

⌨️ Keyboard Support

Use your keyboard for faster input: numbers, operators (+, -, *, /), Enter for equals, Escape to clear, and Backspace to delete.

Full Screen Calculator - Your Complete Calculation Solution

Why Choose Our Full Screen Calculator?

Our full screen calculator is designed to provide the best calculation experience across all devices. Whether you're a student, professional, or anyone who needs quick and accurate calculations, our calculator offers the perfect blend of simplicity and advanced features.

Key Features

Dual Mode Operation: Switch seamlessly between basic and scientific modes
Mobile Optimized: Perfect touch-friendly interface for smartphones and tablets
Calculation History: Never lose track of your previous calculations
Memory Functions: Store and recall values for complex calculations
Keyboard Shortcuts: Speed up your workflow with keyboard support
Scientific Functions: Trigonometry, logarithms, powers, and more
Free to Use: No registration, no downloads, completely free

Perfect For

Students: Homework, exams, and study sessions
Professionals: Quick calculations at work
Engineers: Scientific and technical calculations
Accountants: Financial calculations and budgeting
Teachers: Classroom demonstrations and teaching
Everyone: Daily calculations and problem-solving

How to Use

Basic Mode: Click the numbers and operators to perform simple calculations. Press the equals button or Enter key to see results.

Scientific Mode: Switch to scientific mode to access advanced functions like sin, cos, tan, log, ln, square root, and powers.

History: Click the history button to view all your previous calculations and quickly reuse results.

Frequently Asked Questions

Is this calculator free to use?

Yes! Our full screen calculator is completely free to use with no registration required. Access it anytime from any device.

Does it work on mobile devices?

Absolutely! The calculator is fully responsive and optimized for mobile devices with touch-friendly buttons and interface.

Can I use keyboard shortcuts?

Yes! Use numbers, +, -, *, / for operations, Enter for equals, Escape to clear, and Backspace to delete the last digit.

Is my calculation history saved?

Yes, your calculation history is saved locally in your browser. It persists across sessions and can be cleared anytime.

What scientific functions are available?

Scientific mode includes: sin, cos, tan, log, ln (natural log), square root, square, power, π (pi), and e (Euler's number).