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 = 1500 x 2100 = 3,150,000 pixels
  • Pixel count = 3.15MP pixels
  • Resolution = 3.15MP pixels
  • A full frame sensor would be 17 x 24 mm (0.71)
  • Pixel density would be 42 pixels/mm or 1060 pixels/inch (dpi)
  • Pixel pitch: 24 micron (rather large)

Calculate (file) size

Print sizes (m2)

dpimax dim (m)max surface
10 dpi billboard3.81m x 5.33m= 20.3m2
72 dpi newspaper52.9cm x 74.1cm= 3920cm2
96 dpi minimum39.7cm x 55.6cm= 2205cm2
150 dpi magazine25.4cm x 35.6cm= 903.2cm2
240 dpi inkjet printer15.9cm x 22.2cm= 352.8cm2
300 dpi inkjet printer12.7cm x 17.8cm= 225.8cm2
600 dpi laser printer6.3cm x 8.9cm= 56.45cm2
1200 dpi high-end printer3.2cm x 4.4cm= 14.11cm2

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
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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
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Megapixel calculator
Image Width x Height → megapixels
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See megapixels in different aspect ratios