Trigonometry Calculator

  • Trigonometric Function Calculator
    Calculate sin, cos, tan, csc, sec and cot for any angle in degrees or radians. Free, instant trigonometric function calculator with formulas.
  • Jacobi cd(u,k) Elliptic Function Calculator
    Compute the Jacobi elliptic function cd(u,k) = cn/dn for any argument u and modulus -1 to 1, using a high-precision AGM algorithm. Free and universal.
  • Jacobi nd Elliptic Function Calculator
    Compute the Jacobi elliptic function nd(u, k) = 1/dn(u, k) for a real argument u and modulus k using the AGM descending Landen transformation.
  • Sine Function Calculator
    Evaluate the general sine function y = A·sin(B(x − C)) + D for any x, with amplitude, period, and midline. Supports radians or degrees.
  • Law of Sines Triangle Calculator
    Solve a triangle with the Law of Sines. Enter side a, angle A and angle B to find angle C, sides b and c, plus perimeter and area.
  • Sinh (Hyperbolic Sine) Calculator
    Calculate the hyperbolic sine sinh(x) of any real number instantly using the exact formula (eˣ − e⁻ˣ)/2. Free, accurate, and easy to use.
  • Sin Theta Calculator
    Calculate sin(θ) for any angle in degrees or radians. Fast, free sine calculator with exact step-by-step values and radian conversion.
  • Sine Cosine Tangent Calculator
    Calculate sine, cosine, and tangent of any angle in degrees or radians. Free sin cos tan calculator with formula and worked examples.
  • Sin Degrees Calculator
    Calculate the sine of an angle given in degrees. Enter θ in degrees and get sin(θ) instantly, with the angle converted to radians.
  • Sin 2 Theta Calculator
    Calculate sin(2θ) instantly using the double-angle identity sin(2θ) = 2·sinθ·cosθ. Enter your angle in degrees or radians.
  • SAS Triangle Calculator
    Solve a triangle from two sides and the included angle (SAS). Find the third side with the Law of Cosines, plus area and remaining angles.
  • Ladder Angle Calculator
    Calculate the angle of a ladder against a wall from its height and base distance. Check the safe 75-degree (4-to-1) setup and required ladder length.
  • Right Triangle Trigonometry Calculator
    Solve a right triangle from its two legs: get the hypotenuse, sin, cos, tan, both acute angles, area and perimeter instantly with steps.
  • Ramp Calculator
    Calculate ramp length, slope percentage, incline angle, and slope ratio from the rise and run using the Pythagorean theorem and trigonometry.
  • Rectangular to Polar Coordinates Calculator
    Convert rectangular (x, y) coordinates to polar (r, θ) form instantly. Computes radius r = √(x²+y²) and angle θ = atan2(y, x) in degrees and radians.
  • Triangle Side and Angle Calculator
    Solve a triangle from two sides and the included angle (SAS). Find the third side, remaining angles, perimeter and area using the Law of Cosines and Sines.
  • Angle of Depression Calculator
    Calculate the angle of depression from a vertical height and horizontal distance. Get the angle instantly in degrees and radians using the arctangent.
  • Trapezoid Angle Calculator
    Calculate the base and top angles of a trapezoid leg from its height and horizontal offset, plus the slanted leg length. Free online geometry tool.
  • Theta (Angle) Calculator
    Calculate the angle theta (θ) of a right triangle from its opposite and adjacent sides using atan2. Get the result in degrees and radians instantly.
  • Tanh (Hyperbolic Tangent) Calculator
    Calculate the hyperbolic tangent tanh(x) of any number instantly, plus sinh(x) and cosh(x), using the exact exponential definition.
  • Tangent Angle Calculator
    Calculate the angle θ from the opposite and adjacent sides of a right triangle using θ = atan(opposite/adjacent). Get the result in degrees and radians.
  • Tangent Ratio Calculator
    Calculate the tangent ratio of an angle in a right triangle from the opposite and adjacent sides, plus the angle in degrees. Free trig tool.
  • SSS Triangle Calculator
    Solve any triangle from its three sides (SSS) using the Law of Cosines. Get all three angles, perimeter, and area instantly with worked steps.
  • SSA Triangle Calculator (Law of Sines)
    Solve SSA triangles with the Law of Sines. Enter two sides and a non-included angle to find angle B, angle C, side c, and the number of triangles.

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