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Scientific Calculator

Trigonometry, logarithms, exponents and more

trigonometrylogarithmexponentscientific

📖 How to Use

  1. Enter a math expression in the input field, e.g. sin(30)+cos(60)
  2. Use function buttons to insert (sin, cos, tan, ln, log, etc.)
  3. Click the funcs tab to see extended functions
  4. Real-time result preview as you type
  5. Press Enter or = for the final result; it's saved as Ans

📐 Formula

Supports operator precedence, power (^), trigonometric functions, logarithms, factorial (!), percent (%), and more.

❓ FAQ

How do I switch between degrees and radians?▾
Click the deg button in the top-left corner to toggle between DEG and RAD mode.
What does Ans mean?▾
Ans stores the result of the last calculation and can be used in the next expression.
Is keyboard input supported?▾
Yes, you can type numbers, operators, and parentheses directly. Press Enter to calculate.

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About Scientific Calculator

This tool is completely free, no registration required. Works directly in your browser. Supports both PC and mobile devices.

Scientific Calculator is a free online tool that works on both PC and mobile. No registration or download required — just open in your browser. Results are accurate and reliable for everyday use and professional reference.