Megapixel calculator

Calculate megapixels

Pixel resolution

Size = 2000 x 2000 = 4,000,000 pixels
Pixel count = 4 million pixels
Resolution = 4 mega pixels

Aspect Ratio

Width / Height: 1
"square"
Type of aspect ratio = "Square"
Type of aspect ratio = "Square" (vertical)

Sensor density

A full frame sensor would be 24 x 24 mm (1)
Pixel density would be 56 pixels/mm or 1410 pixels/inch (dpi)
Pixel pitch: 18 micron (rather large)

Shape

Calculate (file) size

Print sizes (m²)

dpi	max dim (m)	max surface
10 dpi billboard	`5.08`m x `5.08`m	= 25.8m²
72 dpi newspaper	`70.6`cm x `70.6`cm	= 4978cm²
96 dpi minimum	`52.9`cm x `52.9`cm	= 2800cm²
150 dpi magazine	`33.9`cm x `33.9`cm	= 1147cm²
240 dpi inkjet printer	`21.2`cm x `21.2`cm	= 448cm²
300 dpi inkjet printer	`16.9`cm x `16.9`cm	= 286.7cm²
600 dpi laser printer	`8.5`cm x `8.5`cm	= 71.68cm²
1200 dpi high-end printer	`4.2`cm x `4.2`cm	= 17.92cm²

Compare to

4K TV (16:9) • 8K TV (16:9) • HDCAM • NTSC DVD • NTSC SVCD • NTSC TV • NTSC VCD • PAL DVD • PAL SVCD • PAL VCD • Quicktime HD 1080p • Quicktime HD 720p • Quicktime SD 480p •

Background

For decades, advances in camera technology have been measured in 'megapixels', although more pixels doesn't always mean better quality. The same metric can also be used to describe the resolution of photos, or digital screens. This megapixel calculator brings it all together. Calculate, compare, visualise and estimate.