How to Convert PPI to DPI in a 3D Program

When you export rendered images in 3D imaging software, you may struggle to know what the correct dots per inch (DPI) is for the export. This is important to know if you want to print these rendered images off. The DPI is the print resolution required, as opposed to the pixels per inch (PPI), which represents the screen resolution. You can do the conversion using a simple piece of math, no matter which 3D program you have. However, if your program is capable of exporting to TIFF, you should do so. TIFF image files allow you to specify the DPI within the file and so you do not need to convert at all.

Things You'll Need

• Calculator

Instructions

1. Find out the pixel dimensions of your potential export.

2. Consider what print size you want to print to; this will be in inches.

3. Divide your pixel dimensions by your print inch size (for example, 1800 px / 6 inches = 300) to produce your DPI.

Tips & Warnings

• Use a calculator, a piece of paper or the inbuilt Windows Calculator to do this multiplication.

References

• Threedy: 72 DPI or 300 DPI - 3DS Max