1:100 to 40mm Miniature Scale for 3D Printing
Convert 3D printed tabletop miniatures from 1:100 to 40mm. This STL scale calculator is designed for Warhammer, D&D, and tabletop gaming miniatures.
Slicer Setting
Uniform scale (XYZ locked)
The math
(40.0mm / 17.5mm) × 100 = 228.6%
Based on 175cm human baseline, eye-level measurement (160cm).
Scale baselines
- Source eye level 16.0mm Eye
- Target eye level 40.0mm Eye
- Scale factor 228.6%
When you need this
You need this when bringing older or smaller 1:100 models into a modern 40mm collection. This is a big upscale. Models will look like different species next to each other unless you apply the conversion to the entire unit or army.
Source: 1:100
1:100 is the micro-armor / mass-battle standard. Used for large tank battles and regiment-level games where table space is limited. Figures are approximately 15mm tall. A single A4 sheet of terrain can represent an entire battlefield. Common systems: Flames of War, Team Yankee, 15mm wargaming.
Note: 1:100 and 15mm are often used interchangeably, but 15mm can mean 15mm to the eyes or 15mm total height. Our calculator uses eye-level baselines to eliminate ambiguity.
Target: 40mm
40mm is used by Star Wars: Shatterpoint, Inquisitor (GW specialist game), Heroic 40mm custom scenes. Used for centerpiece models, display dioramas, or games where individual heroes need to stand out. A 40mm figure has roughly twice the surface area of a 28mm model.
Note: 40mm bases can destabilize on uneven terrain. Consider magnetizing or weighting the base.
Print notes
Set your slicer to 228.6%. FDM works well at 40mm for monsters and vehicles with a 0.4mm nozzle.
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