Perform basic and scientific calculations instantly — sin, cos, tan, log, square root, factorial, and more. 100% free.
A Scientific Calculator is an advanced calculator that supports mathematical functions beyond basic arithmetic. It includes trigonometric functions (sin, cos, tan), logarithms, square roots, factorials, and more. It's essential for students, engineers, and professionals.
This calculator supports:
DEG (degrees) mode calculates trigonometric functions using degrees (e.g., sin(90°) = 1). RAD (radians) mode uses radians (e.g., sin(π/2) = 1). You can switch between modes using the dropdown in the top-right corner.
Yes! Kognitrick Scientific Calculator is completely free to use. No registration, no hidden charges, no credit card required.
Yes! The calculator supports keyboard input:
Absolutely! Your privacy is our top priority. All calculations are performed entirely in your browser using JavaScript. Your data never leaves your device — we do not store, track, or share any of your calculations.
This tool is useful for: