Scientific Calculator
Need sin, cos, ln, or a quick √? This scientific calculator handles all standard operations plus trigonometry, inverse trig, logarithms, exponentials, factorials, and common mathematical constants. Just type or tap buttons, and the result updates instantly. Everything runs locally so no data ever leaves your device.
Processed on your deviceNo signup required100% free
SCI
0
Keyboard shortcuts enabled · Enter = calculate · Esc = clear
How to Use
- Click the number buttons or type numbers on your keyboard.
- Use function buttons for sin, cos, tan, log, ln, √, x², and more.
- Press = or Enter to evaluate the expression.
- Toggle between DEG and RAD mode for angle calculations.
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Frequently Asked Questions
How do I switch between degrees and radians?
Tap the DEG/RAD toggle button near the top of the calculator. The current mode is always shown.
Can I use the keyboard?
Yes. Numbers, operators, parentheses, and Enter all work from the keyboard for fast input.
Is there a memory function?
The current result is available to use in the next calculation. Full M+/MR/MC support is on the roadmap.