Is this trigonometry calculator free and private?

Yes. It is 100% free and runs locally in your browser. Your inputs are not uploaded to any server.

Can I switch between degrees and radians?

Yes. Toggle the mode to compute angles in degrees or radians at any time.

Which functions are supported?

All core trig functions (sin, cos, tan, csc, sec, cot), inverse functions (arcsin, arccos, arctan, arcsec, arccsc, arccot), hyperbolic (sinh, cosh, tanh), and inverse hyperbolic (asinh, acosh, atanh), plus degree–radian conversion.

What input ranges are allowed?

arcsin/arccos require inputs in [-1, 1]; arcsec/arccsc require |x| ≥ 1; arcosh requires x ≥ 1; artanh requires -1 < x < 1.

Does it work on mobile?

Yes. It’s optimized for Chrome, Edge, Safari, and Firefox on desktop and mobile.

Trigonometry Calculator Pro

Q: Does it work on mobile?

Yes. It’s optimized for Chrome, Edge, Safari, and Firefox on desktop and mobile.

Your professional tool for swift and accurate trigonometric calculations.

Function

Input Value

Mode

Degrees Radians

Fast, Free, Private Trigonometry Calculator

Instantly calculate sin, cos, tan, csc, sec, cot, inverse, and hyperbolic functions. Switch between degrees and radians. 100% private and secure all calculations run locally in your browser. Free forever, no sign ups.

Why people love this trig calculator

All core functions

Compute sin, cos, tan, csc, sec, cot in one place.

Inverse & hyperbolic

arcsin, arccos, arctan, arcsec, arccsc, arccot, and hyperbolic variants.

Degrees ↔ Radians

Toggle modes anytime and convert angles instantly.

Precise & fast

High-precision calculations with smart handling of undefined values.

Private by design

No uploads, no tracking works entirely on your device.

Mobile friendly

Optimized for Chrome, Edge, Firefox, and Safari on desktop and mobile.

Popular uses worldwide

Education

Geometry and trigonometry homework, exam prep, and classroom demos.

Engineering & Physics

Angles, waves, oscillations, and vector calculations.

Surveying & Navigation

Bearings, slopes, and distance/height estimation with SOHCAHTOA.

Computer Graphics

Rotations, projections, and animation easing with trig/hyperbolic functions.

Programming

Quick checks for algorithm development and debugging.

Everyday math

Angles in carpentry, architecture, sports, and DIY projects.

How to use the calculator

Choose a function (e.g., sin, arctan, cosh).
Enter your value or angle. Select degrees or radians for trig functions.
Click “Calculate” (or type results update automatically).

Tip: Use the π or e buttons for common constants.

Global availability (GEO)

Built for users in the USA, UK, Canada, Australia, India, and across the EU (Germany, France, Spain, Italy, Netherlands), Middle East (UAE, Saudi Arabia), Asia (Singapore, Malaysia, Philippines, Indonesia, Japan, South Korea), Africa (Nigeria, South Africa, Egypt), and Latin America (Brazil, Mexico, Argentina). If your browser works, our trigonometry calculator works.

Frequently Asked Questions

Is it private and secure?

Yes. Everything runs locally in your browser; we don’t store your inputs.

Do I use degrees or radians?

Choose the mode that matches your problem or class instructions. You can switch anytime.

What about undefined results?

The calculator detects asymptotes (like tan 90°) and reports them as undefined (∞).

Is it really free?

Yes free and unlimited. No account needed, no paywalls, no watermarks.

Built for global users works wherever your browser does.

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