Draw to measure. Price it instantly.

Upload an aerial screenshot or roof photo, trace the roof, and get pitch-corrected square footage and a cost estimate.

Roof Measure · draw, scale, trace

Image
Add a roof image
Scale
Set a known length
Trace
Draw roof planes
Review
Area needed

Best on desktop for precise tracing. The sample results are usable here; use a larger screen for point-by-point roof tracing.

Upload a roof photo or aerial to trace

Upload an aerial or roof photo to start tracing

Drag a file here, or click to browse. A top-down aerial screenshot (from any free satellite map), a drone shot, or a clear roof photo all work. You then set the scale once from a known length and trace each roof face.

Free · no signup · everything stays in your browser.

Set scale: click two points on a feature of known length (a scale bar, a known eave, a dimensioned wall), then enter that length on the right.

Scale

Not set

Draw a reference line on the canvas (2 clicks).

Measured roof

—sq ft

Set the scale to compute area

Footprint

— sf

Sloped area

— sf

Facets

Edge length

— ft

Waste %

Material list Price this roof

Save as estimate

Professional

Turn this measurement into a real estimate — the measured area and edge length seed a defensible commercial assembly you can tune and send. Saved to your account, not just this browser.

To save: trace 1 closed facet / set calibration

trace 1 closed facet
set calibration

Default pitch for new facets

Adjust pitch

Assumed 6/12 — set your pitch.

Style presets:

Facets (0)

No facets traced yet. Set the scale, then trace each roof plane on the canvas.

Auto-saves to this browser as you work

Estimate from plan-view footprint x your pitch factor. Bidding-ready estimates. Always verify on-site before material orders.

Scale once from a known length, then trace roof faces. The tool computes footprint area, sloped area, waste, and a draft price from editable assumptions; verify critical dimensions on site before customer use.

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