The inverse of cosine is called as arccos (cos-1 = acos). It is also known as acos or inverse cosine. The range of arccos is limited to 0 to 180 degree. This online calculator can be used to find the inverse cosine value of an angle. The Arccos Calculator is also called the Inverse Cosine Calculator, as it is the inverse of the cos value. The term Arccos is shortform of the term 'Arc Cosine'. It is just the inverse function of cos(x).
arccos(x) = cos-1(x)
The arccos (0.14) is 1.4303 radians and 81.95 degrees.