Free Online DPI Checker — Check Image DPI & Print Size Instantly
Check the DPI (dots per inch) information of any image with our free online DPI checker. Upload an image to instantly view its horizontal and vertical resolution (DPI/PPI), exact pixel dimensions, and calculated print size at the current resolution. Whether you're a print designer verifying image resolution for your next project, a photographer checking if your photos meet publication requirements (typically 300 DPI for print), or just curious about an image's resolution details, our tool provides everything you need at a glance. Upload multiple images for batch comparison. All processing happens locally in your browser.
Upload one or more images. DPI and resolution info is read from the file's metadata.
View the DPI, pixel dimensions, and calculated print size for each image.
Compare DPI across multiple images to find the best resolution for your print needs.
Tips for Understanding DPI
- 300 DPI is the standard resolution for high-quality print. 72 DPI is typical for web and screen display.
- DPI metadata isn't present in all image formats. PNG and WebP files often lack embedded DPI information — in those cases the tool will show a default value.
- Print size = pixel dimensions ÷ DPI. A 3000×2400 pixel image at 300 DPI prints at 10×8 inches.
Frequently Asked Questions — DPI Information
Is the DPI checker free?
Yes, completely free. No registration, no hidden charges, and no file size limits. All analysis happens locally in your browser.
What is DPI?
DPI (Dots Per Inch) measures the resolution of an image for printing. It indicates how many dots of ink are placed in a one-inch line when the image is printed. Higher DPI means more detail and a sharper print, but also a smaller physical print size for the same number of pixels.
What is the difference between DPI and PPI?
DPI (Dots Per Inch) refers to printing resolution — how many ink dots fit in an inch. PPI (Pixels Per Inch) refers to screen resolution — how many pixels fit in an inch on a display. For digital images, the two terms are often used interchangeably. Our tool shows both values.
How is print size calculated?
Print size is calculated by dividing the pixel dimensions by the DPI. For example, a 2400×1800 pixel image at 300 DPI prints at 8×6 inches (2400÷300 = 8 inches wide, 1800÷300 = 6 inches tall).
What DPI is needed for print?
For high-quality photo prints, 300 DPI is the industry standard. For large format prints (posters, banners), 150-200 DPI is usually sufficient. For documents with text, 600 DPI provides crisp results. Screen-only images typically use 72-96 DPI.
What image formats contain DPI metadata?
JPEG and TIFF files reliably store DPI information in their EXIF metadata. PNG files may store DPI via pHYs chunk but not all editors preserve it. WebP and GIF do not natively support DPI metadata.
Can I upload multiple images at once?
Yes, batch upload is fully supported. Upload multiple images and compare their DPI ratings, pixel dimensions, and print sizes side by side in the list.