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Image DPI / PPI Calculator

Upload an image and calculate its print size at different DPI / PPI values, or enter a target print size to find the required resolution density.

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Select Image

Click here or drag & drop JPG, PNG or WebP

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Pixel Dimensions

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Megapixels

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Aspect Ratio

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File Size

Calculation Mode

DPI / PPI

Width (inches)—

Height (inches)—

Width (cm)—

Height (cm)—

Target Width

Target Height

Unit

Horizontal DPI—

Vertical DPI—

Recommended DPI—

Print Quality—

DPI and PPI are often used interchangeably in everyday image-printing workflows. This calculator uses pixel dimensions and target print size to estimate print density; it does not rewrite or change the image file's embedded DPI metadata.

How to Calculate Image DPI / PPI

📂1. Upload Image

Select a JPG, PNG or WebP image.

📐2. Check Pixels

The tool reads the image width and height in pixels.

🖨️3. Enter DPI

Choose a common DPI or enter a custom value.

📏4. View Print Size

See the estimated print size in inches and centimeters.

Image DPI and PPI Calculator Online

Use this free calculator to estimate how large an image can be printed at a selected DPI or PPI based on its pixel dimensions.

Calculate Print Size from Pixels and DPI

The basic formula is pixel width divided by DPI for print width in inches, and pixel height divided by DPI for print height in inches.

Find Required DPI for a Print Size

You can also enter a target print width and height to estimate the horizontal and vertical DPI needed for that print size.

Frequently Asked Questions

What DPI is commonly used for printing?

300 DPI is a common target for high-quality printed photos, while lower densities may be acceptable for larger prints viewed from farther away.

Does this tool change my image?

No. It performs calculations only and does not modify or upload the image to a Tool Digital Hub server.

Is this tool free?

Yes. The Image DPI / PPI Calculator is free to use.