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Scientific Calculator

Full-featured scientific calculator with trigonometry, logarithms, and advanced math functions for students and engineers

4.9 ⭐ (18,943 ratings) • 100% Free • All Functions
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ℹ️ How to Use Scientific Calculator

Basic Operations: Use number keys and operators (+, −, ×, ÷) for calculations. Press = to get result.
Scientific Functions: sin, cos, tan for trigonometry. log, ln for logarithms. √ for square root, x² for square, xʸ for power.
Modes: DEG for degrees, RAD for radians. Press MODE to switch. Memory functions: M+ to add, RCL to recall.
Keyboard Support: Use number keys, operators, Enter for =, Backspace for DEL, Escape for AC. Full keyboard support included.

Free Scientific Calculator - Advanced Math & Engineering Tool

Complete online scientific calculator with trigonometric, logarithmic, and statistical functions. Perfect for students, engineers, scientists, and anyone needing advanced mathematical calculations. Features include sin, cos, tan, log, ln, square root, power, factorial, and memory functions. Switch between degrees and radians modes for trigonometry.

Key Features

Trigonometric Functions: Calculate sine, cosine, tangent and their inverse functions. Support for both degrees and radians modes. Essential for geometry, physics, and engineering calculations. Accurate to 10 decimal places for precise scientific work.

Logarithmic Functions: Common logarithm (log base 10) and natural logarithm (ln base e) functions. Calculate exponentials and powers with ease. Perfect for chemistry, biology, and advanced mathematics. Handles large and small numbers efficiently.

Advanced Operations: Square root, square, power, factorial, absolute value functions. Parentheses support for complex expressions. Order of operations (PEMDAS) automatically applied. Memory functions for storing intermediate results.

Common Use Cases

Engineering Calculations: Solve complex engineering problems involving trigonometry, logarithms, and exponentials. Calculate forces, angles, vectors, and electrical circuits. Essential tool for mechanical, electrical, civil engineers.

Student Mathematics: Perfect for algebra, trigonometry, calculus, and statistics homework. Verify manual calculations quickly. Learn mathematical concepts through experimentation. Supports educational curriculum from high school to university level.

Scientific Research: Perform precise calculations for physics experiments, chemistry reactions, and biological studies. Handle scientific notation and large numbers. Calculate statistical measures and probabilities accurately.

How It Works

Enter numbers using numeric keypad or keyboard. Select mathematical operations and functions by clicking buttons or using keyboard shortcuts. View expression and result in real-time display. Use memory functions to store values. Switch between DEG and RAD modes as needed. All calculations performed with JavaScript for instant results and complete privacy.

Start Calculating Now!

Use the scientific calculator above for all your mathematical and engineering needs. Full keyboard support included for faster calculations!

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Important Disclaimer

This tool is provided for informational and educational purposes only. Results generated are estimates or general guidance and should not be considered as professional advice or 100% accurate predictions.

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Accuracy Notice

Results may vary based on inputs, algorithms, and external factors. Always verify critical information with qualified professionals.

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No Professional Advice

This tool does not replace consultation with doctors, lawyers, astrologers, financial advisors, or other licensed professionals.

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Use at Your Discretion

We are not liable for any decisions, actions, damages, or losses arising from the use of this tool or its results.

By using this tool, you acknowledge that: Results are for entertainment, educational, or reference purposes. For important decisions (medical, legal, financial, religious), always consult qualified experts. Read our complete Disclaimer and Terms of Service.