Add Angles Calculator

Yes. Negative angles represent clockwise rotation. The calculator adds them algebraically and normalizes the result to the standard 0 to 360 degree range. For example, 90 + (-45) = 45 degrees.

Angles repeat every 360 degrees (one full rotation). A 415-degree angle points in the same direction as a 55-degree angle. Normalization removes full rotations to give the equivalent compass-style direction.

Set the third angle to 0. The calculator works with any combination, including leaving unused fields at zero.

Yes. You can verify that a triangle's angles sum to 180 degrees by entering all three. If the sum is not exactly 180, the triangle measurements may have rounding errors.

The calculator shows the radian equivalent automatically. To convert manually, multiply degrees by pi / 180. For example, 55 degrees = 55 x 3.14159 / 180 = 0.9599 radians.

You can. Look for the "Embed" button near the top of this calculator. It lets you pick a size, border style, and color palette, then gives you an iframe tag to paste into any webpage. The widget is responsive, loads fast, and costs nothing. More details at calculory.com/services/embed-calculators.