Filament Shrinkage Calculator

Scale model dimensions to compensate for measured filament shrinkage per axis

Frequently Asked Questions

How does shrinkage compensation work?

The tool divides your target dimension by one minus the shrinkage fraction. This gives the larger pre-shrink size so the cooled part lands on your target.

Why divide instead of just adding the percentage?

Shrinkage acts on the printed size, not the target. Dividing by (1 minus shrink) yields the exact size to model or scale to.

How do I measure my shrinkage?

Print a known-size calibration cube, measure it after it cools, then compute (design minus actual) divided by design times 100 for each axis.

Does the material change the shrinkage?

Yes. PLA usually shrinks under 0.5 percent, while ABS and nylon can shrink 1 to 2 percent or more. Always measure your specific filament.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.