Scientific Calculator
Free online scientific calculator with trigonometric functions, logarithms, memory, and calculation history. Keyboard input supported — works right in your browser.
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About This Calculator
- Supports sin, cos, tan, log, ln, sqrt, power, and factorial functions.
- Full keyboard input support — type expressions directly.
- Built-in memory (M+, M-, MR, MC) for storing intermediate results.
- 100% free, no registration — runs entirely in your browser.
Frequently Asked Questions
A scientific calculator is an advanced calculator that supports trigonometric functions (sin, cos, tan), logarithms (log, ln), exponents, factorials, and constants like π and e — perfect for math, science, and engineering.
It supports basic arithmetic (+, -, ×, ÷, %), trigonometric functions (sin, cos, tan), logarithms (log base 10, natural log), square root, power (x^y), factorial (!), and constants π and e.
Yes! You can type numbers, operators (+, -, *, /), parentheses, and press Enter to calculate. Backspace deletes the last character and Escape clears all.
Calculations use JavaScript's 64-bit floating-point arithmetic (IEEE 754), providing up to 15-17 significant decimal digits of precision — sufficient for most scientific and engineering applications.
Yes, completely free with no registration required. All calculations run locally in your browser — your data never leaves your device.