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Calculator

Calculate expressions with parentheses, powers, percentages, constants, and common functions directly in the browser.

Processing... 0%
Reading expression
Parsing operators
Calculating result
Preparing output

Result

The calculator is built for quick arithmetic and formula checks directly in the browser.

It understands common operators, grouped expressions, constants, and small scientific functions without sending the expression away from the page.

Use it for estimates, QA notes, measurements, percentages, and simple engineering calculations where a full spreadsheet is unnecessary.

The result appears as copyable text, making it easy to paste into tickets, documents, chats, or calculation notes.

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Executed in Browser

Your files and inputs never leave this device. Processing runs completely offline. 100% Secure.

Accepted Formats & Rules

  • Operators +, -, *, /, %, ^ and parentheses.
  • Functions sqrt, abs, sin, cos, tan, log, ln, min and max.
  • Constants pi and e with clean formatted output.

Key Benefits

✓ Supports practical math syntax without using unsafe eval.
✓ Keeps calculations private in the browser.
✓ Handles degrees or radians for trigonometric functions.

Use Cases

  • • Quickly calculate percentages, formulas, or technical estimates without opening a spreadsheet.
  • • Check expressions with parentheses, powers, pi/e constants, or trigonometry.
  • • Copy the result into a task, document, chat, or working note.