PIXELS, DPI, PRINT SIZE
See pixel dimensions, megapixels, stored DPI and the physical print size at 72, 96, 150, 300 and 600 DPI. This image DPI checker only reads the file on your device. Your image stays in this browser. Nothing is uploaded to a server.
Drop a photo to read its pixels, DPI and print size.
HOW TO
JPEG, PNG and WebP previews stay local. To check the DPI of an image, the tool reads JPEG JFIF and EXIF, or a PNG pHYs chunk.
Pixel dimensions describe the grid. DPI describes how a printer maps that grid to inches. One number does not replace the other.
Divide each side by the DPI you care about. If a 300 DPI print would be smaller than you need, the file is short on pixels.
BEFORE YOU RELY ON IT
Many photos have no physical DPI at all, or they keep the camera default of 72 or 96. That does not mean the picture is low quality. Trust the pixel dimensions first, then use DPI only when you are placing the file in a print layout.
To find the DPI of an image, or to check DPI of an image that already has a label, open the file here. JPEG density is read from EXIF first, then JFIF. PNG density is read from EXIF first, then the pHYs chunk. If the tags disagree, both numbers are noted. WebP shows pixels and estimated print sizes only, because this checker does not invent a density the file never stored.
Use this picture resolution checker to check photo resolution before you print or enlarge. Megapixels are width times height, divided by one million. Print size in inches is pixels divided by DPI. A 3000 × 2000 image is 6 megapixels and prints at about 10 × 6.7 inches at 300 DPI. The same image at 72 DPI is a much larger, less sharp sheet.
This page flags an image that cannot cover a 6 × 4 inch print at 300 DPI, which means the long side is under 1800 pixels or the short side is under 1200. Relabelling the DPI will not fill that gap. Upscale it if you need a larger sharp print, or unblur it if the original is only mildly soft.
GOOD QUESTIONS
It shows pixel width, pixel height, megapixels, any DPI stored in the file, and the print size those pixels would make at common densities.
Open a JPEG, PNG or WebP in this image DPI checker. For JPEG and PNG it reads the stored density and shows it beside the pixel size. If no tag exists, the stored DPI line says Not set. The file is not modified.
The file simply has no physical density tag. You can still check photo resolution from the pixel dimensions. Screens often assume 72 or 96 DPI, but that assumption is not saved in the image. Use the DPI converter if a printer or layout tool needs an explicit value.
Divide each side by your target DPI. At 300 DPI, 1800 × 1200 pixels is 6 × 4 inches. Multiply inches by 2.54 if you want centimetres. The print size calculator does that for any DPI you type.
No. A large file can still be out of focus, noisy or heavily compressed. Resolution tells you how many pixels you have, not whether the detail in them is real.
Yes. The checker decodes the image in your browser and does not send it to a server.