Related Terms • pixel • resolution

Definition: A megapixel, abreviated MP, is one million pixels, though this number is often rounded when referring to digital camera resolution. For instance, a 4 megapixel camera actually produces an image closer to 3.87 million pixels, and a 3 megapixel camera produces an image with 3.15 million pixels. If you know the maximum dimensions of the image you have, you can multiply the width times the height and divide by 1 million to get the megapixels.

1600 by 1200 pixels = 1,920,000 pixels = 1.92 MP. This is the size of an image from a 2 MP camera.

Also Known As: mega-pixel MP

Related Resources:

How Many Pixels Do I Need for Printing Photos?
Make sure your images have enough resolution to print at the size you want.

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