ToolBexa.

Resize Image in CM Online

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Resize an image to a size in centimetres, such as 3.5 × 4.5 cm for a photo. Choose the DPI and the tool converts cm to pixels for you, and stores the DPI in the file.

The interactive Resize Image in CM workspace loads in your browser. Read the practical guide and processing details below.

How to Use Resize Image in CM

Follow these steps, then review your result before using or sharing it.

1

Upload your image

Choose a JPG, PNG or WEBP photo from your device.

2

Enter the new size

Type the width and height in centimetres. Keep the aspect ratio locked to avoid stretching, or unlock it for an exact size.

3

Resize and download

Click Resize Image, check the result size shown, then download the new file.

Key Features & Capabilities

Width and height in cm
DPI-aware cm to pixel conversion
DPI saved in JPG/PNG
Optional KB size limit
Runs in your browser, so the image is not uploaded to a server.

When to use Resize Image in CM

Resize an image to a size in centimetres, such as 3.5 × 4.5 cm for a photo. Choose the DPI and the tool converts cm to pixels for you, and stores the DPI in the file.

The best image settings depend on where the picture will be used. Pixel dimensions describe width and height; file size describes bytes. Changing one does not guarantee a particular value for the other. Keep the original, compare the result at its intended size, and choose a format accepted by the destination.

Get a more useful result

Check the settings against your intended output before processing.

Use Resize Image in CM on ToolBexa as one step in your workflow, then inspect the exported result before uploading or sharing it. If a receiving website gives a format, dimension or input rule, use that requirement rather than a convenient default.

Limits and common mistakes

Review the downloaded result and keep your original file.

How your input is processed

The core operation runs in your browser. Downloaded results remain on your device, and page preferences may be saved in browser storage. Check the Privacy Policy for server logs, external resources and other site features.

Frequently Asked Questions

How is cm converted to pixels?

Pixels = centimetres ÷ 2.54 × DPI. At 300 DPI, 3.5 × 4.5 cm becomes about 413 × 531 pixels.

Which DPI should I choose?

Use 300 DPI for print and most photo uploads, 96 or 72 for screens, unless a form states otherwise.

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People using Resize Image in CM also use: resize image, change image dpi and size, image size changer, resize image in pixels, resize image in inches, resize image in mm, resize image by percentage, increase image size.