Trigonometry calculator (degrees)

Client

Evaluate sin/cos/tan without flipping calculator mode—input is always degrees on this page.

sin, cos, and tan of an angle in degrees—local double-precision trig.

About Trigonometry calculator (degrees)

sin, cos, and tan of an angle in degrees—local double-precision trig. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

sin(30°) = 0.5
cos(30°) = 0.8660254038
tan(30°) = 0.5773502692

Common use cases

  • Check trig table values for 30°, 45°, 60° homework.
  • Convert slope problems to angle measures.

Common mistakes to avoid

  • Radians by mistake

    This page expects degrees—convert with the degrees↔radians tool first.

FAQ

Undefined tan?

At 90° + k·180° tangent is undefined (cos ≈ 0).

Inverse trig?

Not on this page—use an CAS or math library for arcsin/arccos.

More tools

Related utilities you can open in another tab—mostly client-side.