First check what the number describes: a miniature’s scale label or a base’s diameter. A 32 mm round base does not establish a 32 mm figure height. Even a 28 mm scale label needs the maker’s convention before it can be compared with another range.

The labels do different jobs

Checked maker example What its number describes What it does not establish
Reaper product-information convention 25/28 mm heroic miniature labeling with a 1/64 reference A universal ratio for every maker’s 28 mm range
Perry RPB2 North American Store Building described as 1/56 scale, 28 mm Measured doorway fit with a particular figure
Reaper 28 mm and 32 mm gaming bases Base size Figure height, proportions or game permission

Sources: Reaper product information , Perry RPB2 and Reaper bases .

The two 28 mm references use different ratio descriptions. That observation is enough to reject an automatic universal conversion; it is not a physical comparison of the two ranges.

Make the comparison specific

For a figure, record the exact range and what the manufacturer says the scale means. If a physical height is supplied or measured by you, keep its reference point visible. A posed figure, a helmet or a raised weapon can change overall height without changing the intended range.

For a base, record its diameter, shape and the relevant game’s requirement. Matching a figure’s scale label to a base number is insufficient. A game can require a particular footprint for an identified unit regardless of how tall the sculpt appears.

For terrain, compare the opening and usable space with the actual figure and base together. A building’s ratio or the word compatible does not replace the dimensions needed for the way you intend to play.

Which difference actually matters?

Your job Useful comparison
Mixing display figures Actual proportions and pose alongside maker conventions
Using terrain openings Figure/base envelope against opening dimensions
Entering a game or event Current rules for the identified unit and base
Ordering replacement bases Exact diameter, shape and mounting method

A label can help you choose a range to investigate, but it cannot certify every mixed collection. If game legality matters, use that game’s current official requirements instead of a general scale guide.

Method and limits

We compared manufacturer labeling on October 11, 2026. We did not measure miniatures, place them in terrain or judge game legality. The original asset is the label-category table and job-based record. It keeps the uncertainty attached to the correct field rather than promising that all 28 mm and 32 mm products either fit or conflict.

Sources