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Survey Traverse Calculator

Compute plane-traverse coordinates, closure, and optional Bowditch adjustment.

Planning and educational use only: this is a flat-plane approximation, not legal surveying. It does not apply geodetic projection, grid-to-ground scale, convergence, magnetic declination, elevation, instrument, or uncertainty corrections. Consult a licensed surveyor.

Setup

Bearing examples: N 30° 15′ E, S45W, 123.5, 123:30:00. Azimuth is clockwise from north.

Traverse legs and adjustment audit

LegBearing / azimuthDistanceAzimuthLatitude ΔNDeparture ΔERaw NRaw ECorrection NCorrection EAdjusted NAdjusted EAction

Closure

Closure vector
Closure distance
Total length
Relative precision

Traverse plot

Raw and adjusted traverseLocal coordinate plot of raw traverse in blue and Bowditch-adjusted traverse in green.