Converter category
Digital Image Converter
Convert between pixels, megapixels, PPI, DPI, and calculate print sizes at common resolutions.
Universal Digital Image Converter
About digital image conversions
Digital image conversions help photographers, designers, and developers work with pixel dimensions, print sizes, resolution, and sensor sizes. Our digital image converter covers pixels to megapixels, pixels to inches at common DPI values such as 72, 150, and 300, pixels to centimeters, and DPI to PPI. These conversions are essential for preparing images for web, print, social media, and displays. Whether you are resizing a photo, checking print quality, or comparing camera sensors, this converter gives you accurate, practical results.
Most popular digital image conversions
Available units
Popular digital image conversions (7 total)
Unit definitions
Pixel (px)
A pixel is the smallest unit of a digital image. Short for 'picture element'.
Origin: Coined in 1965 for digital image sensors.
Current use: Digital imaging, Screen resolution, Image editing
Megapixel (MP)
A megapixel is 1 million pixels. Used to measure camera sensor resolution.
Origin: Became marketing standard for digital cameras in 2000s.
Current use: Camera specifications, Photo printing, Surveillance
Pixels per Inch (PPI)
PPI measures pixel density on screens. Higher PPI means sharper display.
Origin: Display industry standard for screen resolution.
Current use: Screen displays, Mobile devices, Print preparation
Dots per Inch (DPI)
DPI measures printing resolution. More dots per inch means sharper printed images.
Origin: Printing industry standard since typewriter era.
Current use: Printing, Scanning, Pre-press
Common uses for digital image conversions
Digital image conversions are used for print sizing, web optimization, camera sensor comparison, resolution checks, and design workflow.
Frequently asked questions about digital image
How many pixels are in 1 megapixel?+
1 megapixel equals 1,000,000 pixels.
What is the difference between DPI and PPI?+
DPI originally refers to printer dots per inch. PPI refers to pixels per inch on a screen or image. For digital images, they are often used interchangeably.
Which digital image conversions does this converter support?+
It supports pixels to megapixels, pixels to inches at common print resolutions, pixels to centimeters, and DPI to PPI.