Scientific Calculator

Full scientific calculator with keyboard support.

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About this tool

A full scientific calculator in your browser - supporting arithmetic, trigonometry, logarithms, exponents, factorials, and constants like π and e. Handles operator precedence correctly, shows your calculation history, and works offline. Whether you need a quick sum or a complex scientific expression, this tool handles it without opening a new app.

How to Use the Scientific Calculator

1Click number and operator buttons, or type directly using your keyboard.
2Use brackets ( ) to group expressions and control calculation order.
3Press = or Enter to evaluate the expression.
4Click 'History' to review and re-use previous calculations.

Frequently Asked Questions

Does the calculator follow order of operations (BODMAS/PEMDAS)?+

Yes. The calculator correctly applies Brackets, Orders, Division, Multiplication, Addition, Subtraction - so 2 + 3 × 4 = 14, not 20.

How do I use trigonometric functions?+

Click sin, cos, or tan before entering the angle value. Toggle between degrees and radians using the DEG/RAD button.

How do I calculate a square root or power?+

Use the √ button for square root, x² for squaring, or xʸ to raise x to any power y.

Can I use this calculator offline?+

Yes. Once the page loads, the calculator runs entirely in JavaScript with no server dependency. It works even without an internet connection.

Looking for a deeper guide on this topic? Browse the Searchlight blog.

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