Web Calculator
Quickly calculate a variety of expressions
Features
Supports scientific-calculator-level calculations
Can also calculate trigonometric functions, logarithms, factorials, and pi
Enter the whole expression at once
Calculate long expressions including parentheses and exponents all at once
Built-in memory and history
Keeps M+/M-/MR and the last 10 calculations in history
Supports keyboard input
Calculate quickly with key operations such as Enter and Esc
How to Use
Enter the expression with on-screen buttons
Press the number, operator, and function buttons to build the expression
Check and switch the angle unit
When using trigonometric functions, choose degrees or radians with the Deg/Rad button
Run the calculation with the "=" button
Show the result with = or the Enter key. For mistakes, delete one character with C, or clear everything with AC
Recalculate using history or memory
Click a history item to recall the expression, and reuse the previous result with Ans or MR
Use Cases
Everyday shopping and bill-splitting calculations
Quickly handle everyday calculations such as totals, discount rates, and splitting by number of people
Checking math and physics homework
Use it to check answers to problems involving functions and constants to streamline studying
Quick number checks at work
Verify estimates and tallies in a browser tab without hunting for a calculator
Technical engineering and statistics calculations
Run specialized calculations using exponential notation, factorials, and square roots on the spot
Safety and Privacy
Runs entirely in your browser
Your input data is processed only within your browser and is never sent externally.
Processing only in your browser
calculation is processed entirely within your browser, and input data is not sent to any server.
Communications encrypted with HTTPS
Page loading is also encrypted by TLS, and content cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
No automatic saving of results
calculation history and input suggestions are not stored on the server.
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Most tools are designed securely and do not transmit data.