Free Web Tool

Closed Traverse & Area

Compute coordinates, closure error and balanced area for a closed traverse. Enter bearings & distances, get a live plot and a coordinate & DMD area table.

Inputs

Format examples: N 45 30 E, 100 · S 60 0 W, 80 · or with azimuth: 135.5, 80
Notes & conventions
  • Quadrant bearings: angle from N/S toward E/W. Accepts N 45 30 E, N 45-30 E, N 45.5 E.
  • Azimuth: clockwise from north, 0 ≤ A < 360°.
  • Closure error e = √(ΣΔE² + ΣΔN²); precision = perimeter / e.
  • Balancing uses the Compass (Bowditch) rule.
  • Area by Coordinate method (a.k.a. shoelace) on balanced coordinates.

Results

Perimeter
Closure Error e
Precision (1:?)
Area (balanced)
StatusOK
PtBearingDistΔNΔENE