LIVE GEOMETRY · TEMPLATES
Protractor
Printable custom-size degree protractor.
Setups stay on this device unless you copy a link
01
Custom-size protractor
Creates exact angular divisions, chord dimensions, centre marks and a print-ready circular set-out.
Formula-checkedGuarded inputs · live redraw · print-safe sheet
Member / cut geometryMeasured dimensionDatum / centre3D context · 2D dimensions govern
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Calculated dimensions
All values update from the same geometry used to render the drawing.
Major marks37
Radius600 mm
Circumference3,769.91 mm
Angle increment5°
Half miter2.5°