Quickly determine the ideal Lines Per Inch (LPI) for your printing projects from your image's Dots Per Inch (DPI). Our free converter helps you optimize halftone screen frequency for various printing methods like offset, flexo, and screen printing, ensuring high-quality outputs.
Formula:
The conversion from DPI to LPI typically involves a Screen Factor (SF), which depends on the printing method and desired quality:
LPI = DPI / SF
- LPI: Lines Per Inch (the output screen frequency)
- DPI: Dots Per Inch (the input image resolution)
- SF: Screen Factor (a quality factor, typically between 1.5 and 2.5 for digital halftones, or 2 for a common rule of thumb).