Print Size

Print Size Calculator — Find Real-World Print Dimensions

See exactly how large your image prints in inches or centimeters at any DPI. Verify quality for posters, photos, and documents.

Drag & Drop Images

or click to browse multiple files

Results
Your images never leave your device — 100% browser-based analysis

How to Calculate Print Size

Turn pixel dimensions into inches or centimeters

1

Upload a Photo

Select or drag any JPG, PNG, WebP, or TIFF file from your device.

2

See Pixel & DPI Data

The tool displays width × height in pixels plus the embedded DPI from EXIF metadata.

3

Calculate Print Size

Divide pixels by DPI to get physical print size: width ÷ DPI = inches.

Standard Print Sizes & Pixel Requirements

Minimum pixels needed at 300 DPI for sharp prints

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4×6″ Photo

1200 × 1800 px at 300 DPI — standard wallet & snapshot size

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8×10″ Print

2400 × 3000 px at 300 DPI — popular framed photo size

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A4 (210×297 mm)

2480 × 3508 px at 300 DPI — standard document & flyer size

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24×36″ Poster

7200 × 10800 px at 300 DPI — or 3600 × 5400 at 150 DPI

Why Use Our Print Size Calculator?

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Fully Private

Your photos are analysed locally in the browser. Nothing is sent to any server.

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Precise Calculations

Uses actual EXIF DPI data when available, not assumptions, for accurate print sizing.

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Instant & Free

No account needed. Drop your images and see print sizes immediately.

How Print Size Is Calculated

Print size is determined by dividing an image’s pixel dimensions by its DPI (Dots Per Inch). The formula is simple:

Print Width (inches) = Pixel Width ÷ DPI

For example, a 3000 × 2000 pixel image at 300 DPI produces a 10 × 6.67 inch print. The same image at 72 DPI would print at 41.7 × 27.8 inches — huge but very low quality.

Key guidelines for print quality:

  • 300 DPI — the gold standard for professional photo prints and marketing materials.
  • 150 DPI — acceptable for large-format prints (posters, banners) viewed from 2+ feet.
  • 72 DPI — suitable only for screens; prints at this resolution will appear pixelated.
  • Upscaling doesn’t add detail — stretching a small image to a larger print size reduces quality.

Frequently Asked Questions

Divide your image’s pixel width by the DPI. For example, a 3000 px wide image at 300 DPI prints at 10 inches wide (3000 ÷ 300 = 10). For centimeters, multiply inches by 2.54.

For a 24×36″ poster at 300 DPI you’d need 7200 × 10800 pixels. Since posters are often viewed from a distance, 150 DPI (3600 × 5400 px) is usually acceptable and more manageable.

A4 is 210 × 297 mm (8.27 × 11.69 inches). At 300 DPI you need 2480 × 3508 pixels for a sharp, professional-quality print.

You can increase pixel dimensions in software, but upscaling doesn’t create new detail. The result may look blurry or soft. AI upscalers can help somewhat, but starting with a high-resolution original is always best.

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Image DPI

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