PLAN YOUR PHOTO, POSTER OR ARTWORK BEFORE PRINTING

Print Size & DPI Calculator

See how large an image prints, the pixels your chosen paper size needs and the density left after cropping. Compare fit modes and add a separate bleed allowance without changing your artwork.

Pixels to inches / cm / mmCrop & padding previewOptional local image dimensions

1. Image & print settings

No image loaded. Enter pixel dimensions or optionally read a local image.

PPI means image pixels per inch. Printer DPI describes printed dots and can differ. Set density and bleed to your printer's requirements; 300 PPI here is a starting value.

2. Print plan & trim preview

Resize your image ↗

This is a planning tool. Preview covers the trim area only. Bleed canvas dimensions are calculated separately; your artwork needs suitable extra content beyond every trim edge. The tool does not produce a print-ready file, add bleed content, modify DPI metadata or enhance image detail.

Image dimensions: 1–1,000,000 pixels per edge. Optional decoded files: up to 16 million pixels and 16,000 pixels per edge. Target density: 10–2,400 PPI. Bleed: 0–25 mm per edge. Required pixels round up, display values round to three decimals. Calculations use floating-point arithmetic. Browser-decoded orientation is used; file DPI metadata is ignored. No processing upload or saved image history. Website ads and analytics follow the privacy information.

Using Print Size & DPI Calculator

Plan image density and dimensions for a physical print, with a trim preview and separate bleed canvas calculation.

  1. Enter pixel dimensions or optionally open a local JPG/PNG/WebP for decoded dimensions and a preview.
  2. Choose target PPI, paper size/unit, crop or padding and bleed per edge. Adjust settings to compare results.
  3. Review required pixels, effective PPI and retained source area. Copy or download the plan, then use your editor to prepare the artwork.

Example

A 3,000 × 2,000 image at 300 PPI prints at 10 × 6.667 inches without cropping.
Filling a 10 × 8 inch print crops that image to 250 PPI and retains 83.333% of its source area. A 300 PPI trim needs 3,000 × 2,400 pixels.

Questions & answers

How do DPI and PPI differ?

PPI is image pixels per inch. DPI is printer dots per inch and may be different. This calculator uses PPI for image-density calculations; ask your print provider for the required image density and bleed.

Will changing DPI metadata improve an image?

No. A metadata number does not add image detail. This tool does not change that metadata or resize files. Enlarging to meet a target PPI creates more pixels but does not recover missing detail.

What does fill versus fit mean?

Fill scales the image to cover the trim rectangle and uses a centered crop. Fit preserves the whole image inside the trim rectangle and leaves padding when aspect ratios differ. Effective PPI reflects that placement.

Does it generate bleed artwork?

No. It calculates canvas dimensions including a separate bleed allowance around every edge. The preview shows the trim area only. Supply suitable extra artwork beyond each trim edge in your editor; merely extending a canvas is not sufficient.

How are image dimensions detected?

Optional JPG/PNG/WebP files are decoded locally with the existing image helper. Browser-decoded orientation is used. File DPI metadata is ignored; the PPI field controls the plan.

What are the limits?

Manual dimensions are 1–1,000,000 pixels per edge. Optional files are at most 20 MiB, 16 million decoded pixels and 16,000 pixels per edge. Target density is 10–2,400 PPI, physical sizes 0.01–10,000 selected units and bleed 0–25 mm per edge. Calculated dimensions are bounded to one million pixels per edge.

How are pixels rounded?

Required trim/canvas dimensions round up to whole pixels using floating-point arithmetic with a tiny tolerance for conversion noise. Display values round to three decimals. Extremely small plans can round to a one-pixel dimension.

Can I guarantee print quality from PPI?

No. The tool compares source density against the target you choose. Image detail, processing, print method, paper and viewing distance also affect appearance. The default 300 PPI is a starting value, not a universal requirement.

Are images uploaded?

Decoding, preview and calculation run in this browser without a processing upload or saved image history. Clear the preview or close the page to release decoded image data. Website ads and analytics follow the privacy information.

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