Free Calculator

Perform basic arithmetic, percentages, and financial calculations.

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Universal Calculator

Enter an expression or choose a calculation type.

Result
0
—

Worked example

With the default inputs shown below, this calculator returns the following results:

InputValue
Calculation typeAdd (X + Y)
Value X100
Value Y50
ResultValue
Result150.00

Values shown are produced by this page in your browser; change any input to update them.

How to use the Universal Calculator

  1. Calculation type — default Add (X + Y)
  2. Value X — default 100
  3. Value Y — default 50
  4. Press Calculate to update the results instantly.

Frequently asked questions

Basic arithmetic, percentages and quick financial sums. Type an expression or use the on-screen keypad.
No, everything runs in your browser and is cleared when you reload the page. Nothing is sent to a server.
Yes. Type numbers and operators directly, then press Enter to evaluate. Backspace deletes the last character.

Sources & references