Math
Trigonometry
Enter angle in degrees or radians, get all four trigonometric functions.
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Enter an angle to get function values
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Enter an angle to convert
What does Trigonometry?
Calculate sine, cosine, tangent, and other trigonometric functions.
How to use Trigonometry?
- Enter an angle value.
- Choose the angle unit (degrees or radians).
- View all six trigonometric function values instantly.
Key features
- Calculates sin, cos, tan, csc, sec, and cot.
- Supports both degrees and radians.
- Inverse trigonometric functions also available.
Frequently asked questions
What is the difference between degrees and radians?
Degrees measure angles out of 360; radians measure angles out of 2π — two different units for the same thing.
What is the sine of 90 degrees?
sin(90°) = 1; this is a fundamental value in trigonometry.
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.