Sticker Size Guide in mm (and How DPI Fits In)

2026-08-17

Common sticker sizes in millimetres, the pixel dimensions you need at 300 DPI, and how to set physical size correctly before generating a cut line.

Popular sizes

• 30 × 30 mm — small logo stickers, laptop corners.
• 50 × 50 mm — the most ordered size overall.
• 75 × 75 mm — illustrations with visible detail.
• 100 × 100 mm — bumper and window stickers.
• 148 × 105 mm (A6) — sheets and packaging labels.

mm to pixels at 300 DPI

Pixels = mm ÷ 25.4 × DPI. So 50 mm at 300 DPI is 591 px, 100 mm is 1181 px, and A6 (148 mm) is 1748 px. Anything below roughly 150 DPI at final size will print visibly soft.

Why DPI metadata matters

The file info panel reads the embedded DPI to show the real physical size in millimetres. Screenshots and many web exports carry no DPI tag, so the tool falls back to 72 DPI and the sticker looks far larger than intended.

Fix this by exporting from your design tool at the intended print size with 300 DPI, rather than resizing pixels afterwards.

Set the size before the contour

• Choose the final mm size first, then generate the contour — the offset is measured against that size.
• Add the offset to your outer dimensions when the printer quotes maximum sizes.
• For sheets, plan at least 4 mm between separate stickers so the blades never meet.