Image DPI Checker
Check image DPI, resolution and estimated print size directly in your browser.
No sign-up. No installation. Everything runs directly in your browser.
Check image DPI locally
Upload an image, read pixel dimensions, check embedded DPI when available and estimate physical print size.
Original / Upload
DPI results
Inches
Use the summaryWaiting
Centimeters
WaitingBased on pixels divided by embedded DPI.
Result summary
Pixel dimensions stay unchanged. Changing DPI metadata alone does not add image detail; it only changes how some apps estimate physical print size.
Before / After
The visible image remains identical on screen. DPI affects the physical print calculation, not screen quality.
72 DPI
Suitable for screen viewing.
300 DPI
Typical print resolution.
What is DPI?
DPI means Dots Per Inch. Many applications also use PPI, or Pixels Per Inch, for digital images. For everyday image files, DPI and PPI are often used interchangeably when estimating print size.
DPI becomes important when printing. On a screen, the image is displayed from its pixel dimensions and the layout size chosen by the browser, app or device.
Why check DPI?
Check DPI when preparing photos for print, books, brochures, posters, business cards, client artwork or print shop delivery. It helps estimate how large an image can print at a chosen pixel density.
Large pixel dimensions matter more than DPI alone. A small image marked as 300 DPI may still be too small for a large poster, while a high-resolution photo can print well even if the embedded DPI field is missing or set to a default value.
Common use cases
Photo printing
Estimate print size from image pixels and DPI.
Business cards
Check artwork before sending compact print files.
Brochures
Review images for layouts that need clear printed detail.
Posters
Understand how pixel size affects larger prints.
Canvas prints
Estimate physical output for wall art and photo gifts.
Client artwork
Confirm dimensions before handing files to a client.
What the tool checks
- Image dimensions
- Embedded DPI
- Print size
- Megapixels
- Orientation
- Aspect ratio
Privacy
All MetricLab tools run directly in your browser. Your files and text are processed on your device and are never uploaded to our servers. For this image check, the browser reads pixel dimensions and metadata locally.
MetricLab never uploads images. The preview and detected values exist only during your current browser session.
Supported formats
Image DPI Checker supports JPEG, JPG, PNG and WebP in modern browsers. Some images contain DPI metadata and some do not.
If embedded DPI is unavailable, the tool clearly shows that no DPI information exists and still reports dimensions, megapixels, orientation and aspect ratio.
How it works
1. Upload an image
Select a JPEG, JPG, PNG or WebP image from your device.
2. Read metadata locally
The browser checks image size and metadata fields.
3. Extract DPI if present
Embedded DPI is read when the file contains it.
4. Calculate print size
Print size is estimated from pixels divided by DPI.
FAQ
What is DPI?
DPI means dots per inch. In image files, it is commonly used to estimate how large an image should print.
Is DPI the same as PPI?
Not exactly, but many image apps use DPI and PPI interchangeably for digital image print sizing.
Does changing DPI improve quality?
No. Changing DPI metadata alone does not add pixels or new image detail.
What DPI is good for printing?
300 DPI is a common target for high-quality print. Large format prints can use lower effective DPI because they are viewed from farther away.
What DPI is good for photos?
300 DPI is common for photo prints, but pixel dimensions matter more than the DPI field alone.
Why does my image show no DPI?
Some files do not include embedded DPI or PPI metadata. This is normal, especially for web images and exported graphics.
Can MetricLab see my image?
No. The image is processed locally in your browser and is never uploaded to MetricLab servers.