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 = 3600 x 5400 = 19,440,000 pixels
  • Pixel count = 19.44MP pixels
  • Resolution = 19.44MP pixels
  • A full frame sensor would be 16.1 x 24 mm (0.67)
  • Pixel density would be 100 pixels/mm or 2540 pixels/inch (dpi)
  • Pixel pitch: 10 micron (rather large)

Calculate (file) size

Print sizes (m2)

dpimax dim (m)max surface
10 dpi billboard9.14m x 13.72m= 125m2
72 dpi newspaper127.0cm x 190.5cm= 2.42m2
96 dpi minimum95.2cm x 142.9cm= 1.36m2
150 dpi magazine61.0cm x 91.4cm= 0.56m2
240 dpi inkjet printer38.1cm x 57.1cm= 2177cm2
300 dpi inkjet printer30.5cm x 45.7cm= 1394cm2
600 dpi laser printer15.2cm x 22.9cm= 348.4cm2
1200 dpi high-end printer7.6cm x 11.4cm= 87.1cm2

Compare to

4K TV (16:9)8K TV (16:9)HDCAMNTSC DVDNTSC SVCDNTSC TVNTSC VCDPAL DVDPAL SVCDPAL VCDQuicktime HD 1080pQuicktime HD 720pQuicktime SD 480p


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.


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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
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Aperture, shutter time, ISO → Exposure Value
Megapixel calculator
Image Width x Height → megapixels
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See megapixels in different aspect ratios