PixelKaro
Image DPI Checker

Check Image DPI Online DPI checker for JPG, PNG and WebP

Drop an image to see its DPI, pixel size and how big it prints at 300 DPI. Nothing is uploaded.

Actual metadata reportImage-based estimateNothing uploaded
Image (JPG, PNG, WebP)PDF Document
Check image resolution & metadata

Known DPI samples

Load a generated PNG with verified resolution metadata to see how the report works.

Quick calculator

Quick print-size estimate

Enter pixel dimensions and a target DPI/PPI to calculate print size. Inspecting an image above fills these values automatically.

Common:
Print size in inches10.00 × 6.67 inPrint size in cm25.40 × 16.93 cm
Need full print size calculations? Use our DPI Print Size Calculator.

Batch DPI inspection

Check up to 10 JPG, PNG or WebP images together. Files stay on this device.

How to check image DPI?

  1. Choose, drop or paste the image you want to inspect.

  2. Review its pixel dimensions, stored DPI/PPI, file size and format.

  3. Use the compact estimate to compare that image at common print densities.

Image resolution guide

How to check the DPI of an image online

Choose an image in the DPI checker above. The report shows the DPI or PPI value stored in the file, its true pixel dimensions, file size, format and estimated print sizes. PixelKaro reads the file locally, so you can check image DPI without uploading the image to a server.

What is the DPI of my image?

  1. Select, drop or paste a JPG, PNG or WebP image.
  2. Read the horizontal and vertical DPI/PPI in the resolution report.
  3. Check the pixel width and height; these determine how much real detail the image contains.
  4. Compare the estimated size at 72, 150 and 300 PPI before printing.

What if no DPI metadata is found?

A missing DPI value does not mean that the image is low quality. Screenshots, web exports and messaging apps often omit the resolution tag. Use the pixel dimensions and your intended print size to calculate effective PPI instead of assuming 72 DPI.

Effective PPI = pixel width ÷ print width in inches.

How DPI changes print size

The same 3000-pixel-wide image prints at different physical sizes without gaining or losing pixels.

Print width of a 3000-pixel-wide image at common DPI/PPI values
DPI / PPITypical useApproximate print width
72Screen reference41.67 in / 105.83 cm
96Screen reference31.25 in / 79.38 cm
150Large prints viewed farther away20 in / 50.8 cm
300Sharp photos and close-viewed print10 in / 25.4 cm
600Detailed line art and small text5 in / 12.7 cm

These are practical reference points, not universal print guarantees. Printer, paper, viewing distance and source-image quality also affect the result.

Check picture DPI on Windows or Mac

Windows: right-click the image, open Properties, then check the Details tab for horizontal and vertical resolution.

Mac: open the image in Preview and use Tools > Show Inspector or Adjust Size to view image DPI and pixel dimensions.

Check photo DPI on iPhone or Android

Phone gallery apps do not consistently expose stored DPI metadata. Open this page in the mobile browser and choose the original image to read its available metadata and pixels without installing an app.

Checking a PDF instead? Use the PDF DPI checker, which inspects every image inside the PDF at its placed print size.

Already know the required physical size? Use the DPI and print size calculator to convert inches or centimetres into exact pixel dimensions.

Image learning center

Understand the file, not just the setting.

Original, practical guides to compression, resizing, browser privacy, image resolution, and print planning.

Image Compression and File Size GuideUnderstand why image size changes, what a KB target can and cannot guarantee, and how to reduce a file without destroying useful detail.Read guide How to Resize an Image Without DistortionUse aspect ratios, fit modes, cropping, and pixel dimensions correctly so faces, logos, and documents keep their intended shape.Read guide How Browser-Based Image Processing Protects Your FilesLearn what local image processing means, which network requests still occur, and how to verify that a tool does not upload your selected file.Read guide How to Check the DPI of an ImageFind an image's stored DPI, verify its pixel dimensions, and calculate effective PPI for the print size you actually need.Read guide DPI vs PPI: What Changes Image Quality?Understand printer dots, image pixels, metadata, resampling, and which number matters when you prepare a digital image for print.Read guide Image Resolution and Print Size GuideCalculate a practical print size from pixel dimensions and compare the result at 150, 240, and 300 pixels per inch.Read guide 300 DPI Pixel Dimensions ReferenceUse exact pixel dimensions for common photo and paper sizes at 300 DPI, with formulas for inches and centimetres.Read guide Camera Exposure Triangle Guide & Interactive SimulatorMaster Aperture, Shutter Speed and ISO with an interactive real-time camera simulator and practical cheat sheet.Read guide Smartphone Camera Pro Mode Guide: ISO, Shutter & FocusLearn how to use manual camera controls on Android and iPhone for cinematic mobile photos and sharp night shots.Read guide Portrait Posing Guide: Natural, Confident Poses for BeginnersActionable posing guide for men, women, and couples to look natural, relaxed, and photogenic in front of the camera.Read guide Creative Mobile Photography Hacks: Pro Shots with Everyday ItemsTransform household items into creative camera gear. Master water droplet macro lenses, puddle reflections, fairy light bokeh, and prism rainbow flares.Read guide Mobile Photo Editing Masterclass: Lightroom & Snapseed Color GradingMaster tone curves, HSL color mixing, selective masking, and cinematic color grading on Android and iPhone using Lightroom and Snapseed.Read guide Budget Photography Lighting Guide: DIY 3-Point Studio SetupBuild a professional 3-point lighting setup with key, fill, and rim lights without expensive gear. Practical DIY softboxes, diffusers, and reflector tips.Read guide

Check image resolution and print size together before printing. A low PPI at the intended size can look soft, while changing only a DPI tag cannot create new detail.

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Quick answers

Frequently asked questions

What is DPI in an image?

DPI means dots per inch and describes print density. For a digital image, the available detail comes from its pixel width and height.

How do I check the DPI of an image?

Choose or drop the image above. PixelKaro reads its stored resolution metadata and pixel dimensions directly in your browser.

Is DPI the same as image size?

No. Image size usually means pixel dimensions or file size, while DPI/PPI connects those pixels to a physical print size.

What if my image has no DPI metadata?

Some images do not store DPI information. If you see “No DPI metadata found,” use the pixel dimensions and a target PPI, such as 300, to estimate print size.