Dimensional accuracy tool
3D Print Shrinkage Calculator
Turn measurements from your own calibration print into per-axis scale compensation for the next model.
Use a test printed with the same printer, material, orientation and slicer profile as the part you are designing. Material names alone do not provide a reliable universal compensation value.
Measure a calibration feature
Print a simple test with known X, Y and Z dimensions. Enter the original model dimension and the caliper measurement for each axis.
X axis
Y axis
Z axis
Scale compensation
X axis
- Measured shrinkage
- 0.000%
- Scale factor
- 100.000%
- Model for target size
- 50.000 mm
Y axis
- Measured shrinkage
- 0.000%
- Scale factor
- 100.000%
- Model for target size
- 50.000 mm
Z axis
- Measured shrinkage
- 0.000%
- Scale factor
- 100.000%
- Model for target size
- 50.000 mm
Formula: scale factor = designed test dimension ÷ measured print dimension. Compensated model dimension = desired final dimension × scale factor.
A positive shrinkage result means the test print measured smaller than its CAD dimension. A negative result means it measured larger. Confirm important fits with a second test; this calculation does not guarantee final dimensions.