Scientific Calculator
Advanced calculator with trigonometric, logarithmic, and mathematical functions
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Try nowFree Online Scientific Calculator
A full-featured scientific calculator that runs in your browser. Supports trigonometric functions (sin, cos, tan), logarithms, exponents, factorials, and constants like pi and e.
Use the on-screen buttons or your keyboard to enter numbers and operations. The calculator supports basic arithmetic (+, -, ×, ÷) plus scientific functions including trigonometry (sin, cos, tan), logarithms (log, ln), exponents (x², x^y), square root, and factorial. Access constants π and e via dedicated buttons. The display shows your current expression and the result. Use parentheses for grouping complex expressions. Angle mode switches between degrees and radians for trigonometric functions. Clear your expression with C or delete the last character with backspace. All calculations execute in your browser using JavaScript's Math library.
Students solve homework problems in physics, chemistry, and calculus courses. Engineers perform quick calculations during design work without opening desktop applications. Programmers verify mathematical formulas before implementing them in code. Researchers compute statistical values, logarithms, and exponential functions during data analysis. Teachers demonstrate mathematical concepts in classrooms using a projector. Online exam takers use the calculator when testing platforms prohibit installing software.
Switch to radian mode when working with calculus or higher mathematics—degrees are primarily for geometry and navigation. Remember order of operations: parentheses, exponents, multiplication/division (left to right), addition/subtraction (left to right). Use the ANS button to reference the previous result in a new calculation. For very large or very small numbers, the calculator uses scientific notation (e.g., 1.5e+10). The factorial function only works with non-negative integers and has limits around 170 due to JavaScript number precision. When chaining trigonometric operations, verify your angle mode matches your input.
All processing happens directly in your browser. Your files never leave your device — no server uploads, no cloud storage, no data retention. The tool works offline once loaded, requires no registration, and is completely free with no usage limits.
Frequently Asked Questions
What functions does this scientific calculator support?
It supports basic arithmetic, trigonometric functions (sin, cos, tan and inverses), logarithms (ln, log), square root, power, factorial, and constants (pi, e).
Can I switch between degrees and radians?
Yes, use the DEG/RAD toggle to switch angle mode for trigonometric calculations.
Does the calculator support keyboard input?
Yes, you can type numbers and operators using your keyboard. Press Enter to calculate and Escape to clear.
Is my data stored anywhere?
No. All calculations happen entirely in your browser. Nothing is sent to any server.
Does it support order of operations?
Yes, you can use parentheses to control the order of operations in complex expressions.