Scientific Calculator
Scientific Calculator Online — Free
Advanced calculator with trigonometry, logarithms, exponents, roots, factorials and more. Works on any device.
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How to Use the Scientific Calculator
This calculator supports all standard scientific functions. Type numbers and operators using the buttons or your keyboard. Press Enter or = to evaluate. Press Escape to clear.
- sin, cos, tan — Trigonometric functions (toggle Degrees/Radians)
- ln, log — Natural logarithm and log base-10
- x² — Square a number; √ — Square root
- n! — Factorial; π — Pi constant; e — Euler's number
- M+/M-/MR — Memory store, subtract, and recall
FAQs
Does this support keyboard input?
Yes! You can type numbers, operators (+, -, *, /), and press Enter to calculate. Press Escape to clear.
How do I use trigonometric functions?
Press sin, cos, or tan buttons. The calculator respects your Degrees/Radians toggle. For sin(30°), make sure Degrees is checked, enter 30, then press sin.