Free miniature / terrain builder scale converter. Convert real-world dimensions into 28mm / 32mm tabletop, HO scale, 1:35 or 1:48 model sizes, plus how many foam-board layers you need to stack.
Use when building scale terrain — castle walls, cliffs, dungeon corridors. The foam-layer count is the practical "how many sheets do I cut?" answer.
Most scale converters target railroad modelers. This one adds tabletop gaming scales and a foam-layer counter.
Convert any real-world dimension to your model scale by dividing by the scale ratio (e.g., 1:60 for 28mm tabletop).
Foam-layer count is the scaled height divided by foam thickness, rounded up.
HO scale (1:87) is the standard for model railroads — handy for building modular dungeon tiles.
Roughly 1:60 (a 6-ft tall miniature is 28 mm). Slightly heroic — 32mm scale (1:56) gives chunkier proportions.
Walls and cliffs are usually built by stacking foam sheets. Knowing the count helps you cut materials.
28mm heroic scale is roughly 1:56, so divide the real-world dimension by about 56. A 6-foot (1828mm) doorway becomes roughly 33mm tall on the table.
They are close enough that terrain often works for both, but figures placed side by side will show a noticeable height difference. Pick one scale for characters that need to look consistent and reserve the other for scenery.
Input
Real height 30 ft, 28mm tabletop, 12 mm foam.
Output
152.4 mm in scale. 13 foam layers.
30 ft × 304.8 mm/ft = 9,144 mm real. Divided by the 1:60 ratio of 28mm scale = 152.4 mm. At 12 mm per foam layer, you need 13 stacked sheets.
Capes, skirts, armor → yards / meters needed.
makerScale a custom paint recipe to your army size.
makerNote divisions in ms / Hz for any tempo.
makerFilament, power, wear → suggested Etsy price.