Model Scale Calculator
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Scale a model dimension by percentage — volume scales with the cube of the scale factor.
Dimension & scale
Scaled dimension
150 mm
Volume × 3.38
- Material volume factor
- 338% of original
Related calculators
Scaling 3D models
Uniform scaling multiplies every axis by the same factor. A 100 mm dimension at 150% scale becomes 150 mm. Volume scales with the cube of the factor — 150% scale uses 3.375× the material (1.5³), not 1.5×.
Slicers apply scale in the prepare stage before slicing. After scaling, verify fit on the build plate and check minimum feature sizes — tiny details may become unprintable when scaled down.
Example: 80 mm tall figure scaled to 125% → 100 mm tall. Material volume increases by 1.25³ = 1.95× — nearly double the filament.
Common questions
Why does volume change so much?
Volume is length × width × height. Scaling all three by 1.5× multiplies volume by 1.5³ = 3.375×.
Can I scale one axis only?
Non-uniform scaling distorts the model. This calculator assumes uniform scale — use your slicer for axis-specific stretching.