This calculator requires the use of Javascript enabled and capable browsers. This calculator is designed to give the angles of any regular polygon. Enter the number of sides on the polygon. Then click on Calculate. All angle measurements are in degrees. The information calculated is the name of the polygon, the total of the interior angles, the measure of each interior angle, and the measure of each exterior angle. The formulae involved are for the interior, (n-2)*180/n, and for the exterior, 360/n.