Scientific Calculator
A free online scientific calculator with advanced functions including trigonometry, logarithms, exponentials, and more. Perfect for students, engineers, and professionals.
What is a Scientific Calculator?
A scientific calculator is an advanced calculator designed to perform complex mathematical operations beyond basic arithmetic. Unlike simple calculators, scientific calculators include functions for trigonometry (sine, cosine, tangent), logarithms, exponentials, square roots, and other advanced mathematical operations.
Our free online scientific calculator provides all the essential functions you need for mathematics, engineering, physics, and other scientific disciplines. It supports both degree and radian modes for trigonometric calculations and includes constants like π (pi) and e (Euler's number).
How to Use the Scientific Calculator
- Basic operations: Use the number buttons and operation buttons (+, −, ×, ÷) for basic arithmetic.
- Scientific functions: Click functions like sin, cos, tan, log, ln, or √ to perform advanced calculations.
- Angle mode: Toggle between DEG (degrees) and RAD (radians) using the button at the top left.
- Constants: Use the π and e buttons to input mathematical constants.
- Clear: Click "Clear" to reset the calculator and start a new calculation.
Example Calculations
Example 1: Trigonometry
sin(30°) = 0.5 (in DEG mode)
Example 2: Logarithm
log(100) = 2
Example 3: Square Root
√144 = 12
Example 4: Power
5² = 25
Frequently Asked Questions
What's the difference between DEG and RAD modes?
DEG mode calculates trigonometric functions using degrees (0-360), while RAD mode uses radians (0-2π). Most high school math uses degrees, while advanced mathematics and physics often use radians.
Can I use this calculator for exams?
Check with your instructor or exam board. Some exams allow online calculators, while others require physical calculators. Always verify exam policies before using any calculator.
What functions are available?
Our scientific calculator includes trigonometry (sin, cos, tan), logarithms (log, ln), square root, powers, and mathematical constants (π, e). It also supports all basic arithmetic operations.
Is this calculator free to use?
Yes, our scientific calculator is completely free to use with no registration required. You can use it as many times as you need for your calculations.
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Cite This Calculator
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<p>Calculator: <a href="https://onlinecalculator.co.uk/math/scientific-calculator" target="_blank">Scientific Calculator</a> - OnlineCalculator.co.uk</p>APA Style Citation:
OnlineCalculator.co.uk. (2025). Scientific Calculator. Retrieved from https://onlinecalculator.co.uk/math/scientific-calculatorNote: This calculator is free to use and reference. No permission required for educational or commercial citation.