Indicated Angle Calculator

Formula

To calculate the indicated angle:

\[ \text{I} = \text{T} + \text{D} \]

Where:

\(\text{I}\) is the Indicated Angle (degrees)
\(\text{T}\) is the True Angle (degrees)
\(\text{D}\) is the Magnetic Declination (degrees)

What is an Indicated Angle?

An indicated angle is the angle shown on a compass or other navigational instrument, which may differ from the true angle due to magnetic declination. Magnetic declination is the angle between magnetic north and true north, and it varies depending on your geographic location. By accounting for magnetic declination, you can convert between indicated and true angles to ensure accurate navigation.

Example Calculation 1

Let's assume the following values:

True Angle (\(\text{T}\)) = 45 degrees
Magnetic Declination (\(\text{D}\)) = 10 degrees

Using the formula:

\[ \text{I} = 45 + 10 = 55 \, \text{degrees} \]

The Indicated Angle is 55 degrees.

Example Calculation 2

Let's assume the following values:

True Angle (\(\text{T}\)) = 120 degrees
Magnetic Declination (\(\text{D}\)) = -15 degrees

Using the formula:

\[ \text{I} = 120 - 15 = 105 \, \text{degrees} \]

The Indicated Angle is 105 degrees.