Perimeter by Coordinates

Summary

Enter coordinate pairs (x, y or lat, lon) to instantly compute the polygon perimeter using the Euclidean distance formula.

How it works

1. Enter one coordinate pair per line in the format "x, y" or "lat, lon".
2. The tool parses each line into a list of polygon vertices.
3. It computes the Euclidean distance between each pair of consecutive vertices.
4. The closing edge (last vertex back to first) is included automatically.
5. All segment lengths are summed to give the total perimeter.
6. A canvas preview draws the polygon and labels each vertex.

Use cases

• Measure the boundary length of a land parcel from surveyed corner points.
• Find the perimeter of a building footprint given its corner coordinates.
• Verify polygon edge lengths from exported GIS or CAD data.
• Estimate fence or boundary material needed for an irregular plot.
• Cross-check field survey measurements against computed totals.
• Compute path length for a closed route defined by waypoints.

Frequently Asked Questions