Trigonometry Calculators

45 free trigonometry calculators in Math.

Amplitude And Period CalculatorWork out amplitude and period instantly with clear inputs, formula shown and shareable results.
Amplitude CalculatorFind the amplitude of y = A·sin(Bx + C) + D and describe the full wave properties.
Angle of Depression CalculatorFind the angle of depression from horizontal distance and height below eye level.
Angle of Elevation CalculatorFind the angle of elevation from horizontal distance and height above eye level.
ArcCos CalculatorFind the angle whose cosine equals a given value, with principal value in degrees or radians.
ArcSin CalculatorFind the angle whose sine equals a given value, with principal value in degrees or radians.
ArcTan CalculatorFind the angle whose tangent equals a given value, with principal value in degrees or radians.
Area Of Triangle Using Sine CalculatorWork out area of triangle using sine instantly with clear inputs, formula shown and shareable results.
Bearing And Distance CalculatorWork out bearing and distance instantly with clear inputs, formula shown and shareable results.
Bearing CalculatorCompute the compass bearing between two points given their coordinates.
Cos CalculatorCalculate the cosine of any angle in degrees or radians with step-by-step working.
Cosec CalculatorCalculate the cosecant of any angle in degrees or radians, with pole detection.
Cot CalculatorCalculate the cotangent of any angle in degrees or radians, with pole detection.
Coterminal Angle CalculatorWork out coterminal angle instantly with clear inputs, formula shown and shareable results.
Degree ConverterConvert an angle from radians to degrees with DMS (degrees-minutes-seconds) breakdown.
Degrees To Gradians CalculatorWork out degrees to gradians instantly with clear inputs, formula shown and shareable results.
Degrees To Radians CalculatorWork out degrees to radians instantly with clear inputs, formula shown and shareable results.
Double Angle Formula CalculatorWork out double angle formula instantly with clear inputs, formula shown and shareable results.
Half Angle Formula CalculatorWork out half angle formula instantly with clear inputs, formula shown and shareable results.
Height Of Object From Shadow CalculatorWork out height of object from shadow instantly with clear inputs, formula shown and shareable results.
Hyperbolic Cosine CalculatorWork out hyperbolic cosine instantly with clear inputs, formula shown and shareable results.
Hyperbolic Functions CalculatorEvaluate sinh, cosh, tanh and their inverses for any real number input.
Hyperbolic Sine CalculatorWork out hyperbolic sine instantly with clear inputs, formula shown and shareable results.
Inverse Hyperbolic Functions CalculatorWork out inverse hyperbolic functions instantly with clear inputs, formula shown and shareable results.
Law of Cosines CalculatorSolve a triangle using the cosine rule: c² = a² + b² − 2ab·cos C.
Law of Sines CalculatorSolve a triangle using the sine rule: a/sin A = b/sin B = c/sin C.
Period CalculatorFind the period of y = A·sin(Bx + C) + D and describe the full wave properties.
Phase Shift CalculatorFind the phase shift of y = A·sin(Bx + C) + D and describe the full wave.
Product To Sum Formula CalculatorWork out product to sum formula instantly with clear inputs, formula shown and shareable results.
Radian ConverterConvert an angle from degrees to radians with exact fractional-pi form when possible.
Reference Angle CalculatorWork out reference angle instantly with clear inputs, formula shown and shareable results.
Sec CalculatorCalculate the secant of any angle in degrees or radians, with pole detection.
Sin CalculatorCalculate the sine of any angle in degrees or radians with step-by-step working.
Sinusoidal Function CalculatorWork out sinusoidal function instantly with clear inputs, formula shown and shareable results.
Slope Angle From Gradient CalculatorWork out slope angle from gradient instantly with clear inputs, formula shown and shareable results.
SOHCAHTOA CalculatorFind a missing side or angle of a right triangle using SOH-CAH-TOA ratios.
Solve Oblique Triangle CalculatorWork out solve oblique triangle instantly with clear inputs, formula shown and shareable results.
Solve Right Triangle CalculatorWork out solve right triangle instantly with clear inputs, formula shown and shareable results.
Sum And Difference Formula CalculatorWork out sum and difference formula instantly with clear inputs, formula shown and shareable results.
Tan CalculatorCalculate the tangent of any angle in degrees or radians, with pole detection.
Triangle Trigonometry SolverSolve any triangle given three known values (SSS, SAS, ASA, AAS) using trig laws.
Trig Identity CheckerVerify a trigonometric identity numerically by sampling angles and reporting max deviation.
Trigonometric Equation Solver CalculatorWork out trigonometric equation solver instantly with clear inputs, formula shown and shareable results.
Trigonometric Identity Checker CalculatorWork out trigonometric identity checker instantly with clear inputs, formula shown and shareable results.
Unit Circle CalculatorLook up exact sin, cos, tan values and coordinates for standard unit-circle angles.