Laser DPI & Line Interval Calculator
Convert engraving DPI to line spacing or line spacing to DPI, and estimate scan rows across an image.
Set up your calculation
An illustrative example is loaded. Replace its values with your measurements, costs or documented settings.
Tooling help: Focus & line quality
Calculation
Your result
- Line interval
- 0.1 mm
- DPI
- 254 dpi
- Estimated scan rows
- 500
The quote handoff carries your inputs and assumptions. Only an explicit base cost is suggested as a quote cost; prices, rates and measurements remain planning notes.
How it works
DPI = 25.4 ÷ line interval in mm. Line interval = 25.4 ÷ DPI. Estimated rows = ceiling(image height ÷ interval).
- DPI here describes spacing between scan rows, not guaranteed optical resolution. Test intervals with your material, lens and measured spot size.
- A finer interval adds scan rows and can increase runtime or overburn. The row count is a rectangular coverage estimate.
Reference material
Choose the tool and check the setup
Understand the cutting profile, material reference and equipment limits before applying the result.
Use this in your project
Continue with the next measurement or cost, then keep the assumptions with your quote.
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