Free Image Size Finder
Drop in a photo or graphic to read its size in pixels, its megapixels, aspect ratio, file size and format, then see the largest size it can print sharply. Free, and your image never leaves your browser.
Drag and drop an image here
JPG, PNG, WebP, GIF, SVG, AVIF or HEIC
Your image is read on your own device. It is never uploaded to a server, so it stays private.
Your image details will appear here.
Drop in a photo or graphic to see its pixel size, megapixels, aspect ratio and the largest size it can print cleanly.
Nothing is uploaded. Your image is measured on your own device and is never sent to a server.
Everything about an image, in one look.
One drop reads the size, the shape and the detail of your image, then turns the pixel count into real-world print sizes so you know what it can do before you use it.
Pixel dimensions
The exact width and height in pixels, the number every upload form and printer asks for.
Megapixels
Width times height, the way cameras describe resolution. More means more detail to work with.
Aspect ratio
The shape as a clean ratio like 3:2 or 16:9, with the nearest common ratio when it is close.
File size and format
How much the file weighs, and whether it is a JPEG, PNG, WebP, GIF, SVG or something else.
Orientation
Landscape, portrait or square, so you know if it fits a frame or a layout the right way up.
Print size at any DPI
The physical size it prints at 300, 150, 72 or your own DPI, in both inches and centimetres.
Check any image in four steps.
No editor, no upload and no waiting. Add an image and the sizes appear straight away, measured right there in your browser.
Add your image
Drop a JPG, PNG, WebP, GIF or BMP onto the box, or click to pick one. No file? Type the pixel size instead.
See the exact size
Read the width and height in pixels, plus megapixels, aspect ratio, orientation and file size.
Check the print size
Pick a target resolution and see how large you can print, in inches and centimetres.
Read the quality rating
A table rates common photo, poster and A sizes from Excellent to Poor, so you know before you print.
Know the size before it matters.
Photos & framing
Check a photo is sharp enough before you order a 5 × 7, 8 × 10 or larger framed print.
Posters & signage
Work out the biggest poster or banner a file can fill and still look clean at viewing distance.
Selling online
Confirm product images clear a marketplace’s minimum pixel and quality rules before you list.
Design & artwork
Read the exact dimensions, aspect ratio and DPI of any asset a client or supplier sends over.
Web & social
Check a picture’s size and ratio match what a site, banner or profile slot expects.
Print buying
Turn a pixel count into a real-world print size at 72, 150 or 300 DPI in seconds.
Handling images at scale?
Checking one image is easy. Validating thousands of product shots, resizing and compressing uploads on the fly, generating print-ready files, or building a media library your team can search is a different job. That is the kind of software we build at Techliphant, shaped around how your business actually works with images.
Common image size questions.
It is a free online tool that tells you the exact size of an image. Drop in a photo and it reads the width and height in pixels, works out the megapixels, aspect ratio and file size, and shows how large you can print it at different resolutions with a quality rating for each print size.
It is free with no sign-up, and your image is never uploaded. Everything is read in your browser on your own device, so the file never leaves your computer or phone. That makes it safe to use for private or unreleased images.
Drag your image onto the box, or tap it to choose a file from your device. The pixel dimensions appear straight away, along with the megapixels and aspect ratio. On a phone this is the quickest way to check the size of a photo without digging through settings.
Pixels are the actual dots of colour that make up the image, and they are fixed. DPI, or dots per inch, is how tightly those pixels are packed when you print. The same 3000 pixel wide image is 10 inches at 300 DPI or 20 inches at 150 DPI. DPI only matters for printing, not for screens.
300 DPI is the standard for sharp photo prints held close, like a 6 × 4 or an 8 × 10. Larger prints and posters that are viewed from further away look fine at 150 DPI, and big banners can go lower still. This tool works out the effective DPI for each common print size and rates it for you.
For each print size the tool divides your pixel count by the print size in inches to get the effective DPI, then rates it: 300 or more is Excellent, 200 to 299 is Good, 150 to 199 is Acceptable, and below 150 is Poor. It matches the print’s orientation to your image so the comparison is fair.
Not really. Enlarging an image spreads the same pixels over a larger area, which softens it, and stretching it in an editor invents detail that was never captured. For a bigger, sharper print you need a photo with more pixels to start with. This tool shows the largest size your current file prints well at.
It reads the common formats a browser can open, including JPG, PNG, WebP, GIF and BMP. For JPG and PNG files it also tries to read the print DPI stored inside the file, so if a designer set it to 300 you will see that.
No. The tool only reads the image to measure it. It does not edit, compress, resize or re-save your file in any way, and there is nothing to download. Your original stays exactly as it is.
Phone photos have plenty of pixels for screens and normal prints, but a large poster needs a lot more. A 12 megapixel photo is around 4000 pixels wide, which is excellent up to about A3 and fine as a poster from a distance, but it will look soft if you blow it up to a wall-sized print and stand close.
Megapixels are the width times the height divided by a million, a quick measure of how much detail the image holds. Aspect ratio is the shape, like 3:2 or 16:9. If your image ratio does not match the print size, part of it gets cropped, so it is worth checking both before you order.
Private by design: this finder runs entirely in your browser. Your image is read on your own device to measure it and is never uploaded, stored or changed. The DPI and print sizes are a guide based on pixel count. Prints viewed from a distance, like posters and banners, hold up at a lower DPI than close up photo prints do.
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