Miniature scale guide
Find a realistic size for your diorama and understand why 28mm and 32mm labels need context.
Scale and figure height are related—but not identical
Model scale describes how much smaller a model is than the real object. For a standing adult 1800 mm tall, divide 1800 by the scale denominator. Miniature hobby sizes such as “28mm” and “32mm” can also be conventions measured to the eyes rather than to the top of the head, so they do not always match an exact architectural scale.
| Scale | Height of 180 cm adult | Typical context |
|---|---|---|
| 1:160 | 11.3 mm | N scale railroads |
| 1:87 | 20.7 mm | HO scale railroads |
| 1:64 | 28.1 mm | Diecast car displays |
| 1:56 | 32.1 mm | Approximate 32mm full-height equivalent |
| 1:43 | 41.9 mm | Collectible automobiles |
| 1:32 | 56.3 mm | Larger vehicles and dioramas |
| 1:24 | 75 mm | Large model car displays |
| 1:18 | 100 mm | Premium diecast vehicles |
Can I resize a single STL?
Most slicers can resize model geometry, but small print features do not scale equally well. A thin bag strap that prints at 54 mm may disappear when reduced to 21 mm. A resized model may also need new supports, revised hollowing and different orientation.
Which scale should you choose?
Match your vehicles or architecture first, then test a single figure for visual consistency. We are considering multiple options for our collection; the sizes in this table are an educational reference and not a claim that all these STL variants will be included.
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