Megapixel calculator

A "megapixel" is one million (1.000.000) pixels. Enter the pixel dimensions of your photo, camera, screen or tv, and calculate how many megapixels that is.

Calculate megapixels

  • Size = 800 x 600 = 480,000 pixels
  • Pixel count = 480 thousand pixels
  • Resolution = 480 kilo pixels
  • A full frame sensor would be 31.9 x 24 mm (1.33)
  • Pixel density would be 22 pixels/mm or 560 pixels/inch (dpi)
  • Pixel pitch: 45 micron (rather large)

Calculate (file) size

Print sizes (m2)

dpimax dim (m)max surface
10 dpi billboard2.03m x 1.52m= 3.1m2
72 dpi newspaper28.2cm x 21.2cm= 597.4cm2
96 dpi minimum21.2cm x 15.9cm= 336cm2
150 dpi magazine13.5cm x 10.2cm= 137.6cm2
240 dpi inkjet printer8.5cm x 6.3cm= 53.76cm2
300 dpi inkjet printer6.8cm x 5.1cm= 34.41cm2
600 dpi laser printer3.4cm x 2.5cm= 8.6cm2
1200 dpi high-end printer1.7cm x 1.3cm= 2.15cm2

Compare to

Barco DP4K-32B 4K projectorDCP 2K flatDCP 2K full frameDCP 2K scopeDCP 4K full frameDCP 4K scopeHD 16:9Sony SRX-R320 4K projector

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.

References

Photo calculators & converters

Aspect ratio
Image Width x Height → aspect ratio
Aspect Fit
Fit an image on a screen
Composition Calculator
Focal length, distance, crop factor → image composition
Depth-of-Field Calculator
Aperture, focal length, distance, crop → depth-of-field
DPI calculator
Print Width x Height and dpi → megapixels
Image filesize calculator
Image Width x Height JPG/RAW/PNG → bytes
Light calculator (EV)
Aperture, shutter time, ISO → Exposure Value
Megapixel calculator
Image Width x Height → megapixels
Megapixel Aspects
See megapixels in different aspect ratios
Portrait distance
portrait distance, composition, crop factor, focal length