Two angles are complementary if they add up to 90°.
For example, suppose angle A is 22°. The complementary angle to angle A would be 90° – 22° = 68°. When added together, angle A and its complement equal 90°.
To find the complementary angle for a given angle, simply enter the value of the angle below and then click the “Calculate” button.
Complementary angle: 68°
Complementary angle = 90° – given angle
Complementary angle = 90° – 22° = 68°