This calculator handles everything from simple arithmetic to advanced scientific functions including trigonometry, logarithms, factorials, hyperbolic functions and memory storage. Designed for students, engineers, teachers and everyday users.
Angle modes: Degrees and Radians (toggle in display)
Calculation history: Click any past result to restore it
Keyboard support: Type numbers and operators directly
Frequently Asked Questions
Is this calculator free?
Yes β completely free, no account needed, no ads, no limits.
How do I switch between degrees and radians?
Click the DEG / RAD button in the top-right of the display area. All trig functions (sin, cos, tan and their hyperbolic variants) respect the selected mode.
What does the memory feature do?
MS saves the current result to memory, MR recalls it into your calculation, and MC clears the stored value. The M indicator appears when memory holds a value.
Can I use my keyboard?
Yes. Type digits and operators (+ - * /) directly. Press Enter or = to calculate, Backspace to delete, and Escape to clear.