Resize Image in MM – Free Online Tool

Resize images in cm, mm or inches, right in your browser – free, private and mobile-friendly.

↔️

Select image

or drag & drop your image here

🔒 Processed 100% in your browser — your file is never uploaded to a server

About Resize Image in MM

Quick answer

Choose your picture, enter the width and height in mm, set the DPI and press the button.

iLikePDF's Resize Image in MM tool lets you resize images in cm, mm or inches, right in your browser – free and without any software. It is a good fit for print shops and forms that specify size in mm, photo prints and ID pictures and matching a picture to a printed frame. You may also know it as resize image in mm online, resize image in mm free.

Everything happens in your browser: your files are not uploaded to our servers. It is private by design, quick to use and mobile-friendly.

Illustration of the Resize Image in MM workflow
Resize Image in MM: conceptual illustration, not a screenshot.

How to Use Resize Image in MM

  1. Select your image.
  2. Enter the width and height in mm.
  3. Set the DPI (300 for print, 72 or 96 for screens).
  4. Choose how to fit the picture and press the button.
  5. Download the resized file.

Before & After

Before using Resize Image in MM - photo in its original size

Before (Photo in its original size)

  • Camera size or odd shape
  • Does not fit the frame
  • Too big to upload
After using Resize Image in MM - photo in the size you set

After (Photo in the size you set)

  • Exact width and height
  • Proportions kept unless you stretch
  • Ready to use

Conceptual illustration, not a screenshot.

Supported Input and Output

InputJPG, PNG, WebP, GIF, BMP, AVIF
OutputJPG or PNG
UnitsMillimetres
Fit modesStretch, fill and crop, fit inside, blurred background
UploadNone: runs in your browser

Resize Image in MM Features

Who Should Use Resize Image in MM?

MM to Pixels

Pixels depend on the DPI (dots per inch). Print jobs usually use 300 DPI; screens show images at 72 to 96 DPI. Multiply the size in inches by the DPI to get pixels.

Size72 DPI150 DPI300 DPI
35 × 45 mm99 × 128 px207 × 266 px413 × 531 px
50 × 70 mm142 × 198 px295 × 413 px591 × 827 px
100 × 150 mm283 × 425 px591 × 886 px1181 × 1772 px

Tips for Best Results

Limits and Things to Know

Quick Summary

FeatureDetails
Tool nameResize Image in MM
Cost100% free
Software requiredNo
File uploadNo – processed in your browser
Supported devicesMobile & desktop
Best forPrint shops and forms that specify size in mm

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Disclaimer

Resize Image in MM is for personal and educational use. Check your local laws and your organisation's rules before you process copyrighted or sensitive documents. Results depend on your file and browser, so always check the output before you use it.

FAQs – Resize Image in MM

1. Resize Image in MM kaise use karein?

Apni file select karein, settings check karein aur “Resize image” button dabayein. Result neeche dikhega; phir Download par tap karein.

2. Kya Resize Image in MM free hai?

Haan, iLikePDF ka Resize Image in MM tool bilkul free hai. Koi payment ya signup nahi chahiye.

3. Kya main mobile se Resize Image in MM use kar sakta hoon?

Haan, yeh tool mobile-friendly hai. Aap Android ya iPhone ke browser se bhi Resize Image in MM use kar sakte hain.

4. Kya meri file upload hoti hai?

Nahi. Yeh tool aapke browser me chalta hai; aapki file iLikePDF ke server par upload nahi hoti. (Kuch features ek helper library CDN se load karte hain, lekin aapki file unme nahi jaati.)

5. How do I resize an image in mm?

Enter the size in mm, set the DPI and press the button. The tool converts the size to pixels and saves the DPI in the file.

6. How many pixels are in a mm?

At 300 DPI there are about 11.8 pixels per millimetre; at 72 DPI about 2.8.

7. Why does the DPI matter?

A physical size only means something together with a DPI. The same pixels print smaller at higher DPI.

8. How to use resize image in mm?

Use Resize Image in MM on this page. It runs in a normal browser on computers and phones, with no software and no account.

9. What is the best way to resize image in mm?

The quickest way is Resize Image in MM on this page. Choose your file, check the settings and press the button. Nothing needs to be installed.

10. Do I need to install software to resize image in mm?

No. The tool runs inside your browser, so there is nothing to download or install.