Free Web Tool

Bearing & DMS Calculator

DMS ↔ decimal, quadrant ↔ azimuth, bearing arithmetic (add / subtract / interior angle), and gradian / radian conversions in one place.

DMS ↔ Decimal

Decimal Degrees

Quadrant Bearing ↔ Azimuth

e.g. N 45 30 15 E

Bearing Arithmetic

Notes
  • All angle inputs accept positive or negative decimal values.
  • Azimuth normalized 0 ≤ A < 360°.
  • Back-bearing = (azimuth + 180°) mod 360°.
  • Quadrant parses N/S leading and E/W trailing; spaces or dashes between DMS components.

Results

DMS → Decimal
Decimal → DMS
Quadrant → Azimuth
Azimuth → Quadrant
Arithmetic Result
Decimal in radians
Decimal in gradians