Megapixel calculator

Calculate megapixels

Pixel resolution

Size = 180 x 180 = 32,400 pixels
Pixel count = 32.4 thousand pixels
Resolution = 32.4 kilo 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 5 pixels/mm or 130 pixels/inch (dpi)
Pixel pitch: 200 micron (rather large)

Shape

Calculate (file) size

Print sizes (m²)

dpi	max dim (m)	max surface
10 dpi billboard	`45.7`cm x `45.7`cm	= 2090cm²
72 dpi newspaper	`6.3`cm x `6.3`cm	= 40.32cm²
96 dpi minimum	`4.8`cm x `4.8`cm	= 22.68cm²
150 dpi magazine	`3.0`cm x `3.0`cm	= 9.29cm²
240 dpi inkjet printer	`1.9`cm x `1.9`cm	= 3.63cm²
300 dpi inkjet printer	`1.5`cm x `1.5`cm	= 2.32cm²
600 dpi laser printer	`0.8`cm x `0.8`cm	= 0.58cm²
1200 dpi high-end printer	`0.4`cm x `0.4`cm	= 0.15cm²

Compare to

Facebook Cover Photo • Facebook Image • Facebook Profile Pic • Instagram 2013 • Instagram 2015 • Tumblr Avatar • Tumblr Photo Post •

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.