Need to resize your photo in centimeters (cm) for a copyright, print job, or official document? Most resizing tools use pixels by default, but when real-world measurements matter—like 3.5 cm x 4.5 cm for a copyright photo—you need a photo resizer in cm.
This blog will show you the best free online tools to resize photos in centimeters, how to use them, and some expert tips to avoid blurry or distorted results.
???? Why Resize Photos in CM?
Resizing in centimeters is important when you're:
-
Printing copyright or visa photos
-
Submitting copyright photos
-
Creating posters or brochures
-
Working on academic projects
-
Uploading images for official forms
Pixels vary depending on screen size and resolution, while centimeters are fixed units of length—perfect for consistent print results.
???? Pixels to CM: Understanding the Basics
Before using a photo resizer in cm, know this:
???? Formula:
1 cm ≈ 37.8 pixels at 96 DPI
1 cm ≈ 118 pixels at 300 DPI (for print quality)
For example:
-
A 3.5cm x 4.5cm photo at 300 DPI = ~413 x 531 pixels
✅ Always check DPI when resizing for printing.
???? Top 5 Free Online Photo Resizers in CM
| Tool Name | Key Features | Link |
|---|---|---|
| IMG2Go | Resize photos by cm, mm, or inches | img2go.com |
| ResizePixel | Simple interface, resize by cm and DPI | resizepixel.com |
| Photopea | Photoshop-like tool, supports cm input | photopea.com |
| ConvertImage | Resize copyright-size photos in cm | convertimage.net |
| Pixelied | Predefined sizes (copyright, social, etc.) | pixelied.com |
???? How to Use a Photo Resizer in CM – Step-by-Step (Using ResizePixel)
-
Go to resizepixel.com
-
Click Upload Image
-
In the resize section, change the unit from pixels to centimeters
-
Enter your desired size (e.g., 3.5cm x 4.5cm)
-
Set DPI to 300 if printing
-
Click Resize Image
-
Download your resized photo
????️ Tips to Avoid Quality Loss When Resizing
-
Always upload high-resolution images
-
Use 300 DPI for prints to keep the photo sharp
-
Don’t stretch a small image to a larger size—this reduces quality
-
Crop the image before resizing if it doesn’t fit the aspect ratio
???? Common Photo Sizes in CM
| Use Case | Dimensions (cm) |
|---|---|
| copyright (Many Countries) | 3.5 x 4.5 cm |
| US Visa Photo | 5 x 5 cm |
| copyright Photo | 2.5 x 3.5 cm |
| PAN Card (India) | 2 x 2.5 cm |
| Resume/Job Form | 3 x 4 cm |
Final Words
A photo resizer in cm is essential for anyone dealing with print, documentation, or official uploads. Tools like IMG2Go and ResizePixel make it easy to resize images precisely without losing quality—no design skills needed!