To convert millimeters to Canva pixels, this calculator computes the pixel value to enter in Canva's Custom Size dialog. Canva lets you create designs in pixels, inches, centimeters, or millimeters — but the underlying canvas is always pixel-based.
Enter the mm value
Enter your target size in millimeters. Common examples include 210 × 297 mm for an A4 document, 100 × 100 mm for a square sticker, or any custom physical dimension you need for print.
Select the DPI
Choose the DPI. Canva defaults to 96 DPI for screen designs. For print-quality output (PDF Print), Canva exports at 300 DPI. If you're designing for print, use 300 DPI to calculate the pixel dimensions that will match your mm target at print resolution.
Read the pixel result
Read the pixel result and enter it as the Custom Size in Canva. When Canva exports your design as PDF Print at 300 DPI, the physical output will match your original millimeter specification.
Canva internally manages resolution during export. When you choose "PDF Print," Canva exports at 300 DPI regardless of the canvas pixel size. For accurate print sizing, calculate your dimensions at 300 DPI and enter the pixel values as a Custom Size.