Range of Motion Kit

Manual 3-point angle measurement from a photo. All processing in your browser — images never leave your device.

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Initials (optional)

Date

All data stays in this browser.
Use Print → Save as PDF for chart.
Use Copy Results to copy a record for documentation.

Load one or more photos to start

Then click on the image to place three points:

1 Proximal segment
2 Joint center
3 Distal segment endpoint

Drag any handle to refine. Pick a joint + motion in the dropdown above to update the landmark guide.

Proximal axis Distal axis Neutral reference (dashed)

Joint · Motion · Side

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Range of motion
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0-X° = achieved · -X° = lacking from neutral

Reference normal

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typical AROM

Placement guide

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Tips for accuracy:

Place the proximal point as far from the joint as practical — a longer reference axis reduces angular error from small placement wobble.
The joint point goes on the joint's axis of rotation, not on the prominent bony landmark that's easier to see (e.g., wrist crease, not radial styloid; lateral epicondyle, not olecranon).
The distal point goes along the moving segment's shaft, not at the very fingertip / toe — extension/flexion of distal joints would bias the angle.
Camera tip will appear here when a joint is selected.
Open multiple images as separate tabs to keep all motions side-by-side; the Side selector tags Right vs Left.

Note: 2D photo-based angle estimates are approximate. Document findings as "visual estimate via photo analysis" rather than goniometer-grade measurements. Camera angle, lens distortion, and limb rotation all affect accuracy.