Math
Scientific Calculator
sin, cos, tan, log, ln, √, x², n! — all here. Works in degrees and radians.
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What does Scientific Calculator?
The scientific calculator offers trigonometric functions, logarithms, roots, powers and factorial — with degree/radian support and calculation history.
How to use Scientific Calculator?
- Click buttons to build your mathematical expression.
- Choose DEG or RAD mode before using trigonometric functions.
- Press = to calculate. Results are saved in history and accessible via the Ans button.
Key features
- sin, cos, tan, log, ln, √, x², xʸ, n!, 1/x, π, e
- Degree and radian support with automatic conversion
- History of the last 5 calculations with quick access
Frequently asked questions
When to use degrees vs. radians?
Degrees are more familiar for everyday use (0°–360°). Radians are used in advanced math and physics. π radians = 180°.
What is Ans?
Ans inserts the last calculation result into the current expression. Useful for chaining calculations.
Is this tool free?
Yes, this tool is completely free and requires no registration.
Is my data saved?
No. All calculations happen in your browser only — no data is sent to any server.