Image Dimensions
Read width, height, aspect ratio and megapixels from any image.
Drop your image here
or choose a file — JPG, PNG or WEBP, up to 40 MB
This tool runs in your browser. Your image is not uploaded to our servers.
How it works
Upload any JPG, PNG or WEBP image and its width, height, aspect ratio, megapixel count, file size and format appear immediately. Tap the copy icon next to any value to copy it.
Common use cases
- Checking whether an image meets a platform's minimum resolution
- Confirming an image's aspect ratio before resizing or cropping it
- Quickly comparing megapixel counts between photos
Features
- Width, height, aspect ratio and megapixels
- File size, format and orientation
- Color type, when it can be read from the file
- One-tap copy for every value
Supported formats
JPG, PNG, WEBP, HEIC
Frequently asked questions
How is aspect ratio calculated?
Width and height are reduced to the smallest whole numbers with the same ratio — a 1920×1080 image shows as 16:9.
What counts as a megapixel?
One megapixel is one million pixels. Multiplying width by height and dividing by one million gives the megapixel count, rounded to one decimal place.
Does this tool change my image?
No — it only reads the file's dimensions and details. Nothing is modified, resized or uploaded.
Why is color type sometimes missing?
Color type is read directly from the file's own header. It's available for most JPEG and PNG files; some formats or unusual encodings may not expose it.