Image Dimensions Finder

Upload any image and instantly see its exact pixel width and height, simplified aspect ratio, and total megapixel count — nothing gets uploaded or processed, it's a pure read-out.

What is the Image Dimensions Finder?

Every image file stores its dimensions as raw pixel counts, but most photo apps and file managers only show you the file size in bytes, not the actual resolution. This tool reads the decoded image directly in your browser and reports its width and height in pixels, reduces that ratio to its simplest whole-number form (like 16:9 or 4:3), and multiplies width by height to give you the total megapixel count.

Common Use Cases

• Checking whether a photo meets a print shop or stock site's minimum resolution requirement
• Confirming the aspect ratio of a source image before cropping it to a specific platform size
• Quickly comparing the megapixel count of two photos without opening an editor

How to Use the Image Dimensions Finder

1. Upload any image file from the box above.
2. Read the width, height, aspect ratio and megapixel count from the four stat boxes.
3. Repeat with a different file at any time to check another image.

Frequently Asked Questions

Does this look at the file size in bytes too?

The file's byte size is shown next to its name for reference, but the four stat boxes focus on pixel dimensions, which is what actually determines resolution and print quality.

Why is the aspect ratio shown as a ratio like 3:2 instead of a decimal?

Ratios like 3:2 or 16:9 are the standard way photographers and designers describe proportions, and they're calculated here by dividing both dimensions by their greatest common divisor.

Can I check a very large photo, like from a DSLR?

Yes — the tool reads dimensions from the decoded image regardless of file size, so a 40+ megapixel RAW-derived JPG works the same as a small screenshot.

Knowing the exact pixel grid behind a photo takes the guesswork out of resizing, cropping or checking upload requirements.