Tangent Calculator x: radian̊ degreeππ/3 = Tangent (x): Tangent is a trigonometric function of an angle. tan(θ) = Opposite / Adjacent y=tangent(x) Graph X(deg) X(Rad) tangent(X) 180 ̊ π 0 150 ̊ 5π/6 -0.57735 135 ̊ 3π/4 -1 120 ̊ 2π/3 -1.732051 90 ̊ π/2 Out of Range 60 ̊ π/3 1.732051 45 ̊ π/4 1 30 ̊ π/6 0.57735 0 ̊ 0 0