Resize Image in CM, MM or Inches
Resize a photo to a physical size — 3.5 × 4.5 cm, 2 × 2 inch, 35 × 45 mm and so on. Choose the unit and the DPI (300 is standard for print), and the tool works out the exact pixel dimensions and re-encodes the image. Runs fully in your browser.
Drop an image here, or click to choosePNG, JPG or WebP — nothing is uploaded
How to use it
- Upload your image.
- Pick cm, mm or inch and set the width and height (aspect ratio can stay locked).
- Set the DPI — 300 for print, 96 for screen.
- Resize and download the JPG / PNG / WebP.
FAQ
- What DPI should I use?
- 300 DPI is the print standard and what most form portals expect. Use 96 or 72 only for on-screen use.
Related tools
- Image ResizerResize a photo by pixels, percentage or cm / mm / inch — with an optional KB limit.
- Compress Image to a Target KBShrink a JPG / PNG / WebP to a specific size — 20 KB, 50 KB, 100 KB, 200 KB.
- Increase Image Size in KBPad a too-small image up to a minimum file size some portals require.
- Image CompressorReduce JPG, PNG and WebP file size with a quality slider and live preview.
- Crop ImageDrag to crop a photo, with 1:1, 4:3, 3:4, 3.5:4.5 and 16:9 aspect presets.
Free to use, no sign-up. Calculations run in your browser — nothing you type is sent to a server. These tools are for general information only, not professional advice. See the full tool list.