Calculator
NewCalculationUse a simple calculator with addition, subtraction, multiplication, division, percentage and square root. Free, fast and works entirely in your browser with no install.
Calculations run instantly in your browser. Operators are applied from left to right, and dividing by zero shows an error.
What can this calculator do?
This calculator handles addition, subtraction, multiplication and division, plus percentage and square root. It works like a pocket calculator but runs right in your browser.
How do the functions work?
- The % key divides the current value by 100.
- The √ key computes the square root of the current value.
- ⌫ deletes the last digit and C clears everything.
How are calculations chained?
Press an operator, enter the next number and press = for the result. Repeated operators are evaluated in order from left to right, like a classic simple calculator.
What happens when I divide by zero?
Divisions by zero show an error message instead of a result. Press C to start a fresh calculation.
Can I use the keyboard?
The tool is designed for clicks and taps, so it also works comfortably on phones. Results are shown with up to twelve significant digits for accuracy.
Frequently Asked Questions
What is Calculator?
Add, subtract, multiply and divide with a simple in-browser calculator.
How do I use Calculator?
Type or paste your data into the field on this page and press the button. The result is calculated instantly in your browser — nothing is uploaded.
Is Calculator free?
Yes, Calculator is completely free. No signup, no downloads and no usage limits.
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