HomeEveryday ToolsMath CalculatorsInverse Tangent (atan) Calculator Math CalculatorsInverse Tangent (atan) CalculatorFind the angle whose tangent is a given value, in degrees and radians.ValueTry:10.5-1atan(1)45°atan(1)0.785398163397 radMore in Math CalculatorsCalculatorPercentage CalculatorAddition CalculatorSquare Root CalculatorLog CalculatorSine (sin) CalculatorCosine (cos) CalculatorTangent (tan) CalculatorInverse Cosine (acos) CalculatorInverse Sine (asin) Calculator