Trigonometry Calculator
Calculate sine, cosine, tangent & their inverses
Trigonometric Values:
Result:
Unit Circle Reference:
Trigonometry Reference
Basic Functions:
Sine (sin):
sin(θ) = Opposite / Hypotenuse
Cosine (cos):
cos(θ) = Adjacent / Hypotenuse
Tangent (tan):
tan(θ) = Opposite / Adjacent
Common Angles:
0° = 0 rad
30° = π/6
45° = π/4
60° = π/3
90° = π/2
180° = π
Pythagorean Identities:
sin²(θ) + cos²(θ) = 1
1 + tan²(θ) = sec²(θ)
1 + cot²(θ) = csc²(θ)
Right Triangle Rules:
Pythagorean Theorem:
a² + b² = c²
Angle Sum:
A + B + C = 180°
SOH-CAH-TOA:
Sine=Opp/Hyp, Cosine=Adj/Hyp, Tangent=Opp/Adj