Poster Size Calculator

Select a standard poster size or enter custom dimensions. The calculator will convert units, show the aspect ratio, and calculate the total print area.

1. Select Size or Enter Custom

Results

Aspect Ratio (Width:Height): --
Total Print Area: --

Dimensions in Different Units:

Width (Inches): -- in
Height (Inches): -- in
Width (Centimeters): -- cm
Height (Centimeters): -- cm
Width (Millimeters): -- mm
Height (Millimeters): -- mm

Design & Printing Tips:

  • **Resolution:** Ensure your image resolution (DPI/PPI) is sufficient for the target print size (e.g., 300 DPI for high-quality prints).
  • **Bleed:** Add a bleed area (extra margin) to your design if it goes to the edge of the paper to prevent white lines after cutting.
  • **Color Mode:** Use CMYK color mode for print designs, not RGB, for accurate color representation.
  • **Aspect Ratio:** Maintaining the aspect ratio prevents your design from looking stretched or squished when resizing.
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