Bed Leveling Offset Calculator
Calculate Z-offset adjustments for 3D printer bed leveling.
Get the right first layer height for perfect adhesion.
Z-Offset Adjustment
Bed leveling ensures the nozzle maintains a consistent distance from the print bed across the entire surface. Good first layer adhesion is critical for successful prints.
Z-offset is the distance between the nozzle tip and the bed surface. A typical first layer is squished slightly for adhesion.
Ideal first layer height:
- Standard (0.2mm layer): Z-offset ~0.1–0.2mm below paper test height
- Thick first layer (0.3mm): Z-offset ~0.15–0.25mm below
- Thin first layer (0.1mm): Z-offset ~0.05–0.1mm below
Paper test reference: A standard sheet of paper is ~0.1mm (0.004 inches) thick. The nozzle should lightly grip the paper when properly set.
Signs of incorrect Z-offset:
- Too high: Filament does not stick, spaghetti mess
- Too low: Filament is transparent/too thin, nozzle scrapes bed
- Just right: Slightly squished lines with no gaps between them
Adjustment formula:
New Offset = Current Offset + Adjustment
Negative values move the nozzle closer to the bed.