math
Trig Function Calculator
Calculate sin, cos, tan, csc, sec, and cot of any angle in degrees or radians.
sin
0.5
cos
0.866025
tan
0.57735
csc
2
sec
1.154701
cot
1.732051
How it works
- 1Enter an angle.
- 2Choose degrees or radians.
- 3Read all six trigonometric functions of the angle.
Use cases
- Look up sine, cosine, and tangent for an angle.
- Get the reciprocal functions csc, sec, and cot.
- Check trigonometry homework in either degrees or radians.
Frequently asked questions
What are the six trigonometric functions?
sin, cos, and tan, plus their reciprocals: cosecant (1/sin), secant (1/cos), and cotangent (1/tan).
Degrees or radians — which should I use?
Use whichever your problem is stated in. Toggle the unit; 180° equals π radians.
Why is tan or sec sometimes huge?
Near angles like 90° the function approaches infinity, so the value grows very large where it is undefined.
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