1. What is Magnetic Bearing?

Magnetic Bearing is the horizontal angle which a line makes with the magnetic meridian. It varies with time due to changes in Earth's magnetic field.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( MB \) — Magnetic Bearing (radians)
• \( TB \) — True Bearing (radians)
• \( MD \) — Magnetic Declination (radians)

Explanation: This formula calculates the magnetic bearing by subtracting the magnetic declination from the true bearing when dealing with east declination.

3. Importance of Magnetic Bearing Calculation

Details: Accurate magnetic bearing calculation is crucial for navigation, surveying, and mapping applications where precise directional measurements are required.

4. Using the Calculator

Tips: Enter true bearing and magnetic declination values in radians. Both values must be valid non-negative numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between true bearing and magnetic bearing?
A: True bearing is measured from true north, while magnetic bearing is measured from magnetic north, which differs due to magnetic declination.

Q2: How does east declination affect the calculation?
A: With east declination, magnetic north is east of true north, so magnetic bearing is calculated by subtracting the declination from true bearing.

Q3: Can this calculator handle west declination?
A: This specific calculator is designed for east declination. For west declination, the formula would be different (MB = TB + MD).

Q4: What units should be used for input values?
A: The calculator expects input values in radians for both true bearing and magnetic declination.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise based on the input values. Accuracy depends on the precision of the input measurements.