# Vector Angle Conversion

- Author:
- Mark Fowler

**Practice Converting Between Heading, Direction Angle, and Quadrant Bearing**Enter a value for either Heading or Direction Angle and see how the vector and the other angle forms change.

- Heading (course, or bearing) are COMPASS angles and are measured CLOCKWISE from NORTH.
- Quadrant bearing is a short-cut notation for heading and is measured FROM the first letter (either NORTH or SOUTH) TOWARD the last letter (either WEST or EAST).
- Direction angle (our vector angle) is the TRIG angle measured COUNTERCLOCKWISE from the positive X-AXIS.

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