Inverse Trig Calculator
Math CalculatorsCalculate Arcsin, Arccos, and Arctan from decimal values.
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Angle (Deg)
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Angle (Rad)
About This Tool
Convert trigonometric ratios back into angles. Find the angle in degrees or radians for given Sine, Cosine, or Tangent values.
Frequently Asked Questions
Because the Sine function only produces values between -1 and 1, the inverse function can only take inputs within that same range.
Inverse trig functions are often called arcfunctions, such as arcsine, arccosine, and arctangent.
Trig functions are periodic, meaning many angles have the same sin/cos. Inverse calculators return the "principal value" within a specific standard range.
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