Nautical Bearing Converter — Formula

## Nautical Bearings

### Three-Figure Bearing

Bearings are always given as three digits measured clockwise from north: 000° to 360°.

### Quadrants

| Quadrant | Range | Cardinal |
|---|---|---|
| Q1 | 000°-090° | N to E |
| Q2 | 090°-180° | E to S |
| Q3 | 180°-270° | S to W |
| Q4 | 270°-360° | W to N |

### Reciprocal Bearing

The opposite direction: add 180° (or subtract if over 180°). Used to find the return course.