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 = 4350 x 6300 = 27,405,000 pixels
  • Pixel count = 27.41MP pixels
  • Resolution = 27.41MP pixels
  • A full frame sensor would be 16.6 x 24 mm (0.69)
  • Pixel density would be 121 pixels/mm or 3070 pixels/inch (dpi)
  • Pixel pitch: 8.3 micron (rather large)

Calculate (file) size

Print sizes (m2)

dpimax dim (m)max surface
10 dpi billboard11.05m x 16.00m= 177m2
72 dpi newspaper153.5cm x 222.2cm= 3.41m2
96 dpi minimum115.1cm x 166.7cm= 1.92m2
150 dpi magazine73.7cm x 106.7cm= 0.79m2
240 dpi inkjet printer46.0cm x 66.7cm= 3070cm2
300 dpi inkjet printer36.8cm x 53.3cm= 1965cm2
600 dpi laser printer18.4cm x 26.7cm= 491.1cm2
1200 dpi high-end printer9.2cm x 13.3cm= 122.8cm2

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
Image Width x Height JPG/RAW/PNG → bytes
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Megapixel calculator
Image Width x Height → megapixels
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See megapixels in different aspect ratios