Instantly check image dimensions, file size, aspect ratio, megapixels, and print size - privately in your browser.
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JPG, PNG, WebP, GIF, SVG, AVIF, or BMP. Maximum 100 MB.
Private: your image is processed locally and never uploaded.
Local analysis complete
Calculated from pixel dimensions at common PPI values. Embedded DPI metadata is not read.
| PPI | Width | Height | Centimeters |
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Fast, factual, local
Image Size Check is a free online image size checker for reviewing an image before publishing, sharing, cropping, or printing it. Choose, drop, or paste a file to see its pixel dimensions, file size, aspect ratio, megapixels, orientation, format, and estimated print sizes at common PPI values.
There is no account, installation, or upload step. Your image is decoded by the browser and never sent to a server, making the tool suitable for private drafts, client assets, product photos, and screenshots. Resetting or closing the page releases the temporary preview.
An image can have several different kinds of "size," and each one answers a different question. This image size finder keeps those measurements separate so you can use the right number for the task in front of you.
The image size checker reports an image's width and height in pixels, such as 1920 x 1080. These pixel dimensions describe the image grid used for screen layouts, crops, exports, and print calculations. A website asking for a specific width and height usually means pixel dimensions.
File size is the storage used by the encoded image, shown in bytes, KB, or MB. Two images with identical dimensions can have different file sizes because format, compression, detail, and metadata affect storage. This matters for upload limits and page performance.
Aspect ratio expresses the relationship between width and height as 1:1, 3:2, 4:5, or 16:9. It indicates whether an image suits a square thumbnail, portrait frame, landscape banner, or video canvas. The checker also labels its orientation.
Megapixels summarize total pixel count: width multiplied by height, divided by one million. A 2400 x 1600 image contains 3.84 megapixels. This measures pixel quantity, not sharpness, noise, dynamic range, or compression quality.
The result includes the MIME type reported by the file and browser, such as image/jpeg or image/png. The checker accepts JPG, PNG, WebP, GIF, SVG, AVIF, and BMP when the current browser can decode the format.
A corrupt file, incomplete download, mislabeled extension, or unsupported codec may fail to open. A visible error explains the problem so you can choose another image or export a fresh copy.
People often search for an image resolution checker when they need pixel width and height. "Resolution" can mean pixel dimensions, screen density, or print density. This tool reports the actual image grid and keeps print estimates separate.
A large file is not automatically a high-resolution image. A poorly optimized file may use substantial storage at modest dimensions, while a compressed JPEG can have large dimensions and a small file size. Neither number alone proves sharpness.
Use dimensions for layout requirements, file size for upload limits, aspect ratio for cropping, and megapixels as a pixel-count summary. For print planning, consider dimensions together with intended PPI and viewing distance.
The image size checker reports factual measurements rather than assigning a quality score. Focus, noise, compression artifacts, color, and source sharpness still require visual judgment.
Print planning
The image size checker estimates physical print dimensions at 72, 96, 150, and 300 pixels per inch. Estimated width in inches is calculated by dividing pixel width by PPI. Estimated height uses the same calculation, and inches are multiplied by 2.54 to show centimeters.
For example, a 2400 x 1600 image is estimated at 8 x 5.33 inches at 300 PPI. At 150 PPI, the same pixels cover approximately 16 x 10.67 inches. The image has not gained or lost pixels; only the assumed print density has changed.
These figures are planning estimates, not a guarantee of print quality. Final output also depends on source sharpness, compression, printer behavior, paper, sharpening, viewing distance, and the standards of the print provider. The baseline checker does not read embedded DPI metadata and does not claim that changing metadata creates additional detail.
Transparent calculation: print width = pixel width / PPI, print height = pixel height / PPI, and inches x 2.54 = centimeters. No pixels are added during this estimate.
Before publishing, use the image size checker to see whether the source is much larger than its display area. Oversized images waste bandwidth and can slow a page. Exact dimensions also help you choose the right crop.
Marketplaces, forms, and social platforms may specify minimum dimensions, aspect ratios, or file-size limits. Use the image dimension checker to inspect the source, then compare the result with the destination's current requirements.
Copy the dimensions or result summary into a design brief, ticket, or client message. This prevents confusion when similar exports have different dimensions, formats, or file weights.
Compare output estimates at several PPI values before ordering a print. The table shows the tradeoff between physical size and pixel density without claiming to judge source quality.
The image size checker runs with browser APIs on your device. Image bytes are not uploaded, and the product has no endpoint for storing image files. Analytics must never include image content, file names, local paths, or personal file information.
Local processing avoids waiting for an upload and remote response. Browser support still varies, so a format that works in a current browser may fail in an older one. Unsupported, empty, unusually large, or corrupt files return a visible error.
Choose, drop, or paste an image. The result shows dimensions, file size, aspect ratio, megapixels, orientation, format, and estimated print sizes. The file stays in your browser.
No. Image size often refers to width and height in pixels. File size is the storage used by the encoded file. Compression and format can change file size without changing pixel dimensions.
Not by itself. Editing DPI metadata without adding meaningful pixel information does not create detail. Print quality depends mainly on available source pixels, intended physical size, source quality, and the printing process.
300 PPI is common for close-range prints, while 150 PPI may suit larger prints viewed farther away. Ask the print provider when the result matters commercially.
No. Images are decoded locally in your browser. The tool does not upload or retain the selected image on a server. The local preview is released after reset or when the page closes.
The checker accepts JPG, PNG, WebP, GIF, SVG, AVIF, and BMP when supported by the browser. It does not currently promise RAW or TIFF decoding, EXIF inspection, animation-frame analysis, or batch reports.
The file may be empty, corrupt, incomplete, mislabeled, or encoded in a way the browser cannot decode. Try opening it in a trusted image application or exporting a new copy before checking again.
Use the image size checker to confirm the facts before you upload, publish, crop, send, or print. The result is immediate, the calculations are transparent, and your image remains on your device.
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