my eye

Topographical Map Contour Length Measurement Tool

PDF rendering uses PDF.js from a CDN. Images are fully local.

Not calibrated

0 points · 0.00 ft

Total contour length: 0.00 ft

Controls
Click to add vertices. Double-click or Enter to finish.
Mouse wheel = zoom. Space + drag = pan.
Backspace = undo point. Esc = cancel current line.
Load a topo map to begin.