Set one known measurement to estimate dimensions, or mark three points to calculate an angle in degrees.
Perspective and depth affect the result. Physically check any dimension or angle before cutting, ordering or drilling.
Use a straight-on photograph where the reference and target sit on the same surface.
The photograph is processed locally and is not uploaded.| # | Type | Label | Estimate |
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Reserved outside the working editor
The tool compares the pixel length of your known reference with its real value, then applies that ratio to other marked lines.
Click the corner or vertex first, then click one point along each of the two edges. The tool calculates and labels the smaller angle between them from 0° to 180°.
It can. Results are most useful when the camera faces the surface squarely and reference and target are at the same depth.
No. Calculation and downloading happen locally in your browser.