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 = 1200 x 1800 = 2,160,000 pixels
  • Pixel count = 2.16MP pixels
  • Resolution = 2.16MP pixels
  • A full frame sensor would be 16.1 x 24 mm (0.67)
  • Pixel density would be 33 pixels/mm or 850 pixels/inch (dpi)
  • Pixel pitch: 30 micron (rather large)

Calculate (file) size

Print sizes (m2)

dpimax dim (m)max surface
10 dpi billboard3.05m x 4.57m= 13.9m2
72 dpi newspaper42.3cm x 63.5cm= 2688cm2
96 dpi minimum31.7cm x 47.6cm= 1512cm2
150 dpi magazine20.3cm x 30.5cm= 619.4cm2
240 dpi inkjet printer12.7cm x 19.0cm= 241.9cm2
300 dpi inkjet printer10.2cm x 15.2cm= 154.8cm2
600 dpi laser printer5.1cm x 7.6cm= 38.71cm2
1200 dpi high-end printer2.5cm x 3.8cm= 9.68cm2

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