Scientific Calculator
Free online scientific calculator with trigonometric, logarithmic, and advanced math functions. Supports parentheses, exponents, and constants.
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Frequently Asked Questions
What functions does this scientific calculator support?▾
This calculator supports trigonometric functions (sin, cos, tan, asin, acos, atan), logarithms (log base 10 and natural log), square root, absolute value, factorial, ceiling, floor, and round. It also supports constants pi and e.
Can I switch between degrees and radians?▾
Yes. Toggle the DEG/RAD button to switch angle modes. In degree mode, trig functions like sin(90) return 1. In radian mode, sin(pi/2) returns 1.
Does this calculator support keyboard input?▾
Yes. You can type numbers, operators, and parentheses directly from your keyboard. Press Enter to evaluate the expression and Escape to clear.
Is my data safe when using this scientific calculator?▾
Yes. All calculations happen entirely in your browser using JavaScript. No data is ever sent to a server.