Working out the best resolution to create an image on your laser can be a laborious trial and error, or a simple task with the help of this calculator.  This data can then be used in any image editing programme or website to create the perfect reproduction on your machine.

1. Check the laser website or manual to find the spot size of your laser in MM. This may vary for different lenses.  (If this is stated as UM, simply put 0.0 in front of the number given.)
2. Enter the project output size you want and the calculator will give you the result.

If your project is based in Inches, simply multiply this by 25.4 to find the size in CM.