DPI stands for Dots Per Inch. It is a measure of spatial printing or video dot density and is used to describe the image resolution number of dots per inch in a digital image print. Images printed with higher DPI have more detailed output. Use this online DPI calculator to calculate the image size in Dots Per Inch resolution. Just input the required values and the Dots Per Inch calculator will automatically calculate and update you with the dots fits per inch of the image.
An image has a resoution of 12x8 pixels and diagonal size of 8 inches. What is its DPI?
Dots Per Inch = √(82 + 122) / 8
= 14.422 / 8