Tools for 3D Printing

Geometry · proportional scaling

Model scale and dimension calculator

Convert one known model dimension into a target size while keeping every axis proportional. Use uniform mode for normal resizing or unlock the axes when you intentionally need non-uniform scale.

Browser-local tool
Inputs stay on this device

Calculator

Current model dimensions
Scaling method

Workbench note Non-uniform scaling can distort holes, threads, and mating geometry. Independently verify settings that affect equipment, fit, cost, or safety.

01 / METHOD

How to use this model scale tool

  1. Enter the model’s current X, Y, and Z dimensions.
  2. Choose uniform scaling and supply one target dimension, or set each target axis independently.
  3. Apply the reported percentages in your slicer and confirm the preview fits the build volume.

02 / APPLICATIONS

When it is useful

  • Resize a downloaded part to a measured opening
  • Convert a miniature between scales
  • Check whether a model fits a printer’s build volume

03 / MODEL

Assumptions and limitations

Assumptions

  • All displayed dimension fields use millimeters.
  • Uniform scaling preserves proportions and angles.
  • The source mesh dimensions are measured correctly.

Limitations

  • Scaling does not compensate for material shrinkage, clearances, minimum wall thickness, or nozzle limits.
  • Non-uniform scaling can distort holes, threads, and mating geometry.

04 / FAQ

Common questions

Does scaling change all three dimensions?

Uniform mode applies the same percentage to X, Y, and Z. Independent mode calculates a different percentage for each axis.

How do I scale 1:12 to 1:6?

Use 200%. The target representation is twice as large because 12 divided by 6 equals 2.

Should I add shrinkage here?

Only if you have measured shrinkage for the exact material and process. Test a calibration part before relying on compensation.