Medium Poster Size — 18 × 24 in
The 18 × 24 inch medium poster is the most widely used US event poster size — readable from 3–5 metres, standard at most US print shops, and fits common poster frames. At 300 DPI it's 5400 × 7200 pixels. It's the default format for concerts, exhibitions, school events, and retail window promotions.
Specifications
| Pixels | 5400 × 7200 px (at 300 DPI) |
| Millimetres | 457.2 × 609.6 mm |
| Centimetres | 45.7 × 61.0 cm |
| Inches | 18 × 24 in |
| Aspect ratio | 3:4 |
| Colour mode | CMYK |
| Bleed | 0.125 in (3 mm) |
| Safe zone | 0.5 in (12.7 mm) from trim |
Medium Poster (18×24) in Pixels at Different DPI
The pixel count changes with DPI setting — choose the right one for your output.
| DPI | Width (px) | Height (px) | Use |
|---|---|---|---|
| 72 | 1,296 | 1,728 | Screen preview, PDF viewers |
| 96 | 1,728 | 2,304 | Windows screen standard, digital documents |
| 150 | 2,700 | 3,600 | Medium-quality print, home printers |
| 300 | 5,400 | 7,200 | Professional print, commercial offset |
Design Tips
- →18×24 is readable from 4–5 metres — headline type should be 60–80 pt minimum. Avoid placing dense body copy; this format works for headlines and key information, not paragraphs.
- →Standard poster frame sizes (18×24 in) are widely available at US retailers — design within a 17×23 in safe zone if you want content to show clear of the frame border.
- →Print on 80–100 lb gloss coated stock for vivid colour in retail and event environments. Matte stock reduces glare for indoor reading-room contexts.
- →18×24 is close to A2 (420×594 mm / 16.5×23.4 in) but not the same — confirm the format with your print shop to avoid an incorrect size.
Create Medium Poster (18×24) designs with Playyy
Set a custom canvas to 5400 × 7200 px, generate visuals from a text prompt, and export at the right dimensions — no design software needed.
Start designing free →Frequently Asked Questions
What is medium poster size?+
A medium poster is 18 × 24 inches (457.2 × 609.6 mm). At 300 DPI, the canvas is 5400 × 7200 pixels. It's the most common US event poster format — visible from 4–5 metres and available at most print shops.
What is the most common poster size?+
In the US, the most common poster sizes are 18×24 in (medium) and 24×36 in (standard). 18×24 is the most versatile — it fits standard poster frames and prints at most copy shops. 24×36 is used for higher-visibility outdoor and lobby displays.