PandaFileKit

Resize image in cm, mm or inches

Type the print size in cm, mm or inches and a DPI. You get the exact pixel size, with DPI written in.

JPG · PNG · WEBP · HEIC → JPG / PNG

Sent to server: 0 B

Requests made by this tool while processing · how to verify
Requests that could carry data
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Engine downloads (code, models)
0
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Counted with the browser's Performance API during the last job. It sees every request the page makes, but not what is inside them, so anything that is not a static download is counted above.

To check yourself: open DevTools → Network, clear the list, run the tool, and inspect each request. None will contain your file. You can also switch to offline after the page loads; tools whose engine is already downloaded keep working.

Drop images here

or paste, or choose files

JPG · PNG · WEBP · HEIC → JPG / PNG

Add one or more photos. Each is cropped to the shape you set.

Specific jobsResize image to 3.5 × 4.5 cmResize photo to 2 × 2 inches

Resize a photo to a real print size in cm, mm or inches

Photo rules, print shops and forms often give sizes on paper rather than in pixels: a 35 × 45 mm passport photo, a 2 × 2 inch US photo, a 5 × 7 cm print. This tool converts the size you type into the right number of pixels for the DPI you choose, crops the photo to that shape without stretching it, and writes the DPI into the file so it prints at exactly that size.

  • A 35 × 45 mm photo for UK, Schengen, Australian and many other applications; Indian and Nepali forms use the same 3.5 × 4.5 cm size.
  • A 2 × 2 inch (51 × 51 mm) photo for US passports and visas.
  • Preparing a 4 × 6 inch or A6 print from a phone photo.
  • Meeting a form that states a size in cm together with a DPI.

Size, unit, DPI and crop

Pick a preset (3.5 × 4.5 cm, 2 × 2 in, 5 × 7 cm, 4 × 6 in or A6) or type a width and height in cm, mm or inches; the swap button flips portrait and landscape. Pixels are the print size in inches times the DPI: 3.5 × 4.5 cm is 413 × 531 px at 300 DPI and 827 × 1063 px at 600 DPI. With one photo, drag the frame (it keeps the print shape) to choose what stays; in a batch, each photo is centre-cropped. JPG and HEIC photos are saved as JPG, other formats as PNG, with the DPI written in.

  • 300 DPI is the usual print standard; 150 DPI is plenty for posters seen from a distance.
  • The output is limited to 80 megapixels; lower the DPI or the size if you reach it.

Pixels can't be invented

If the part of the photo you keep has fewer pixels than the target, it is enlarged and will look soft in print. For passport and visa photos, this tool gets the size right but doesn't check head size, background or KB limits: use Passport photo maker for print sheets with head guides, or Photo resizer for online forms when a portal also sets a KB range.

  • Print at 100% or Actual size, not Fit to page, then measure with a ruler.
  • Check print size, pixels and DPI in the result panel.

Resize image in cm, mm or inches: questions

How many pixels is 3.5 × 4.5 cm?

413 × 531 px at 300 DPI, or 827 × 1063 px at 600 DPI. The tool works this out for any size and DPI.

Will my photo be stretched?

No. It's cropped to the shape of the print size first, then resized, so faces and objects keep their proportions.

Which DPI should I choose?

300 DPI for photo prints and most forms. Use 600 only if a printer or form asks for it; the file gets four times as many pixels.

Why does my printout come out the wrong size?

The print dialog is scaling it. Choose 100% or Actual size and turn off Fit to page, then measure with a ruler.

Can I resize several photos at once?

Yes. In a batch each photo is centre-cropped to the shape. Add one photo at a time if you want to position the crop yourself.

Is my photo uploaded?

No. Cropping and resizing happen in your browser.