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 = 1440 x 2160 = 3,110,400 pixels
  • Pixel count = 3.11MP pixels
  • Resolution = 3.11MP pixels
  • A full frame sensor would be 16.1 x 24 mm (0.67)
  • Pixel density would be 40 pixels/mm or 1020 pixels/inch (dpi)
  • Pixel pitch: 25 micron (rather large)

Calculate (file) size

Print sizes (m2)

dpimax dim (m)max surface
10 dpi billboard3.66m x 5.49m= 20.1m2
72 dpi newspaper50.8cm x 76.2cm= 3871cm2
96 dpi minimum38.1cm x 57.1cm= 2177cm2
150 dpi magazine24.4cm x 36.6cm= 891.9cm2
240 dpi inkjet printer15.2cm x 22.9cm= 348.4cm2
300 dpi inkjet printer12.2cm x 18.3cm= 223cm2
600 dpi laser printer6.1cm x 9.1cm= 55.74cm2
1200 dpi high-end printer3.0cm x 4.6cm= 13.94cm2

Compare to

4K TV (16:9)8K TV (16:9)HDCAMNTSC DVDNTSC SVCDNTSC TVNTSC VCDPAL DVDPAL SVCDPAL VCDQuicktime HD 1080pQuicktime HD 720pQuicktime 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.

References

Photo tools

Aspect ratio
Image Width x Height → aspect ratio
Composition Calculator
Focal length, distance, crop factor → image composition
Depth-of-Field Calculator
Aperture, focal length, subject 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