Image Dimension Checker
How to Check an Image's Resolution
Need an image's exact pixel size or aspect ratio? Drop it into the tool below to see its width, height, megapixels, file size and ratio — without uploading it anywhere.
Check image dimensions
Steps to check resolution
- Drop your image into the box above, or click to choose it.
- Read the width × height in pixels, the aspect ratio and the file size.
- Use the numbers to check upload limits or print sizes.
Resolution, dimensions and DPI
On screen, what matters is the pixel dimensions (e.g. 1920 × 1080). DPI only matters for printing — it sets how large those pixels print. To check the DPI specifically, use the Image DPI Checker.
Frequently asked questions
What does resolution mean for an image?
It's the number of pixels across and down, like 1920 × 1080. More pixels means more detail and a larger possible display or print size.
Is my image uploaded to check it?
No. The tool reads the file in your browser, so nothing is uploaded.