R3 II vs R3Pro II vs M0 vs US Quarter vs CD Case size comparison

This comparison shows 5 objects drawn to scale. Drag the view to rotate it, or add your own items to the comparison.

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Dimensions (height × width × depth)
Object	As entered	Centimetres	Inches
R3 II	86.9 × 14.5 × 60.6 mm	8.69 × 1.45 × 6.06 cm	3.42 × 0.57 × 2.39 in
R3Pro II	86.9 × 21.6 × 60.6 mm	8.69 × 2.16 × 6.06 cm	3.42 × 0.85 × 2.39 in
M0	45.0 × 13.8 × 43.8 mm	4.5 × 1.38 × 4.38 cm	1.77 × 0.54 × 1.72 in
US Quarter	24.3 × 1.52 × 24.3 mm	2.43 × 0.15 × 2.43 cm	0.96 × 0.06 × 0.96 in
CD Case	142 × 9.91 × 125 mm	14.2 × 0.99 × 12.5 cm	5.59 × 0.39 × 4.92 in

* Height × width × depth of the box each object fits in, not the object's own volume. Multiples are against the smallest box here, US Quarter.