Layer Height Calculator
Find the optimal layer height for your 3D printer nozzle.
Includes magic numbers for common stepper motors.
Layer height is the thickness of each printed layer. It has the biggest impact on print quality and print time.
General rule: Layer height should be 25–75% of nozzle diameter.
- Minimum: 25% of nozzle diameter
- Optimal quality: 50% of nozzle diameter
- Maximum: 75% of nozzle diameter
Example for 0.4mm nozzle:
- Min: 0.1mm (fine detail, slow)
- Standard: 0.2mm (good balance)
- Max: 0.3mm (fast, less detail)
Magic numbers are layer heights that align with stepper motor steps. Most printers use a lead screw with 8mm pitch and 200-step motors. This gives a full step of 0.04mm.
Magic layer heights: 0.04, 0.08, 0.12, 0.16, 0.20, 0.24, 0.28, 0.32mm Using these avoids micro-stepping artifacts and gives smoother surfaces.
Thinner layers: Better quality, smoother curves, longer print time. Thicker layers: Faster prints, visible layer lines, stronger parts.