Magnetic azimuth to grid azimuth calculator

How to Use the Calculator

1. Enter the Magnetic Azimuth in degrees. This is the direction measured from magnetic north.
2. Enter the Declination Angle in degrees. This is the angle between magnetic north and true (grid) north. Positive values indicate east declination, while negative values indicate west declination.
3. Click the Calculate button to compute the Grid Azimuth.
4. The result will be displayed in degrees from the grid north.

Working Principle

The calculator uses the following formula to convert magnetic azimuth to grid azimuth:

Grid Azimuth = Magnetic Azimuth + Declination Angle

The declination angle accounts for the difference between magnetic north and grid north. By adding or subtracting this angle from the magnetic azimuth, you can determine the correct grid azimuth.

Example

If you have a magnetic azimuth of 30° with an east declination of 2°, the grid azimuth would be:

Grid Azimuth = 30° + 2° = 32°

Applications

This calculator is useful for:

• Navigation in areas where magnetic declination is significant
• Surveying and mapping applications
• Military and aviation operations
• Geographic information systems (GIS)