Poster Sizes: The Complete Guide

Whether you're printing a movie poster, advertising an event, or creating art for your home, choosing the right poster size matters. This guide covers every common poster size across ISO and US standards.

📊 Quick Facts:
• Most common: A2 (420 × 594 mm)
• Largest A-series: A0 (841 × 1189 mm)
• US standard: 24 × 36 inches
• Movie poster (US): 27 × 40 inches
• Movie poster (UK): 30 × 40 inches (UK Quad)

📏 ISO A-Series Poster Sizes

SizeMillimetresInchesBest For
A0841 × 1189 mm33.1 × 46.8 inLarge displays, art
A1594 × 841 mm23.4 × 33.1 inCinema posters, ads
A2420 × 594 mm16.5 × 23.4 inStandard posters ⭐
A3297 × 420 mm11.7 × 16.5 inSmall posters, art prints
A4210 × 297 mm8.3 × 11.7 inSmall posters, flyers

🇺🇸 US Poster Sizes

SizeInchesMillimetresBest For
Small11 × 17 in279 × 432 mmSmall posters
Medium18 × 24 in457 × 610 mmStandard posters
Large24 × 36 in610 × 914 mmLarge posters ⭐
Extra Large27 × 40 in686 × 1016 mmMovie posters
Billboard48 × 72 in1219 × 1829 mmLarge advertising

🎬 Movie Poster Sizes

Movie posters have their own standard sizes depending on region:

FormatRegionSize
One SheetUSA27 × 40 in (686 × 1016 mm)
UK QuadUK30 × 40 in (762 × 1016 mm)
Bus Stop / SubwayUSA40 × 60 in (1016 × 1524 mm)
Three SheetUSA41 × 81 in (1041 × 2057 mm)
French GrandeFrance47 × 63 in (1194 × 1600 mm)
Italian 2 FogliItaly39 × 55 in (990 × 1400 mm)
Japanese B2Japan20 × 29 in (515 × 728 mm)

🎯 Choosing the Right Poster Size

Use CaseBest SizeWhy
Home art / small printsA3Fits frames easily
Standard posterA2Most popular size
Cinema / event posterA1Eye-catching from distance
Retail displayA0Maximum impact
Movie poster collectionOne Sheet / QuadStandard collectible
Art gallery printA2 or A1Premium framing
Billboard / large ad48 × 72 inStreet-level visibility

🖨️ Recommended DPI for Poster Printing

  • A3 (11.7 × 16.5 in): 300 DPI
  • A2 (16.5 × 23.4 in): 150-300 DPI
  • A1 (23.4 × 33.1 in): 150 DPI
  • A0 (33.1 × 46.8 in): 100-150 DPI
  • 24 × 36 in poster: 150 DPI
  • Movie One Sheet: 150 DPI
  • 48 × 72 in billboard: 72 DPI

📸 Poster Pixel Dimensions

Required pixel dimensions for common poster sizes at 150 DPI:

Poster SizePixels @ 150 DPI
A31754 × 2481 px
A22481 × 3508 px
A13508 × 4961 px
A04961 × 7016 px
24 × 36 in3600 × 5400 px
One Sheet4050 × 6000 px
UK Quad4500 × 6000 px

💡 Printing Tips

  • Add 3mm bleed on all sides for full-bleed posters
  • Use CMYK colour mode for accurate print colours
  • Save as PDF or TIFF for highest quality
  • Check proof before ordering full print run
  • Consider paper weight: 200-300gsm for posters

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