PixelSizes

Print tools

DPI Calculator

Calculate the DPI (PPI) of an image at your print size: DPI = pixels ÷ inches. Choose a local image or enter its pixels, then compare fit versus crop.

Your dimensions

On your device

Optional · JPEG, PNG or WebP · up to 12 MiB / 60 MP. The image stays in your browser.

No image selected. You can also enter dimensions below.

Presets set the finished print size and unit. PPI and rounding remain your choice.

Read locally from an image, or enter it yourself.

Width and height use the decoded image orientation.

Finished size in the unit below.

Use the intended portrait or landscape orientation.

Applies to both print dimensions.

Fit preserves the full image; fill crops to cover the print.

A numerical comparison with your target, not an assessment of the photo’s detail.

Use a decimal point, without commas. Physical lengths and PPI accept up to 4 decimal places.

Example result

200 effective PPI

Below your 300 PPI target

Image area retained
53.33%
Placed image size
15 × 10 in
Placement
Centered crop to fill
Finished printPlaced image · proportions only
Illustrative geometry · proportions, not actual screen size

46.67% of the source image area is outside this centered print. Inspect the subject near the crop edges.

Passing a pixel-density target does not assess focus, compression, subject detail, color or print quality. No file is modified.

Calculation details & inputs
Inputs used for this result
Image width3000 px
Image height2000 px
Print width8
Print height10
Print unitInches (in)
PlacementFill print — crop edges
Your target resolution300 PPI
Result details · 6 decimals or 3 significant digits for tiny values
Effective PPI200
Target PPI300
Image area retained (%)53.333333
Image area removed (%)46.666667
Placed width (in)15
Placed height (in)10
Border on each left/right edge (in)0
Border on each top/bottom edge (in)0
Full print width at target PPI (px)2,400
Full print height at target PPI (px)3,000

Behind the numbers

How the calculation works

Fit PPI = the larger axis ratio. Fill PPI = the smaller axis ratio. Each axis ratio is pixels ÷ print inches.

No resampling or image-quality analysis is performed. Preview crops are centered planning geometry; your printer or editor may crop differently.

Results use the numbers you enter. See the methodology for precision, accepted ranges and sharing behavior.

Reference notes

References checked September 28, 2026. Calculations and worked examples are our own.

Useful answers

Common questions

Does my image leave my device?

The image is decoded in this page’s browser memory. There is no upload or remote analysis request. Share links and CSV files contain calculation numbers, not the image or its filename. A printout can include the visible preview.

Why does Fill show a lower PPI than Fit?

Fill enlarges the image enough to cover both print edges, so it may crop the excess. Fit keeps the entire image inside the page and can leave borders. The same pixels can therefore cover a larger placed area in Fill mode.

Does meeting the target mean the image will look sharp?

It only means the calculated density reaches your numerical target. Focus, compression, motion blur, detail, viewing distance and the printing process are not evaluated. Inspect the actual photo and a proof when needed.

A practical next read

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Pixels → print size

Convert pixels to inches, cm or mm at any PPI. Convert one measurement instantly, compare a PPI table, or calculate the width and height of an image.

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Print / 02

Print size → pixels

Start with a physical size and a target PPI. Calculate a whole-pixel canvas with an explicit rounding choice.

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Geometry / 04

Resize the dimensions

Reduce a pixel pair to its aspect ratio, then calculate a new width or height while keeping the original proportions.

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