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Reciprocal Heading Calculator
Find the reciprocal heading or course for any entered direction and verify the 180-degree opposite direction.
deg
Reciprocal—
Original—
Difference—
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The opposite of 027°
The opposite of 027° is 027 + 180 = 207°. For 270°, subtract 180 to obtain 090°.
The reciprocal is a direction reversal, not a wind-corrected return heading. Recompute wind correction when planning a return leg.
Formula and method
A reciprocal direction is 180° opposite the original direction, normalized to the 001°–360° convention.