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 = 256 x 256 = 65,536 pixels
  • Pixel count = 65.54 thousand pixels
  • Resolution = 65.54 kilo pixels
  • Width / Height: 1
  • "square"
  • Type of aspect ratio = "Square"
  • Type of aspect ratio = "Square" (vertical)
  • A full frame sensor would be 24 x 24 mm (1)
  • Pixel density would be 7 pixels/mm or 180 pixels/inch (dpi)
  • Pixel pitch: 140.6 micron (rather large)

Calculate (file) size

Compressed image formats (estimated size)

JPG 100% 24bit/pixel13.38 KB
JPG 90% 24 bit/pixel6.69 KB
GIF 8bit/pixel, 255 colors20.07 KB
PNG losless 24bit/pixel38.09 KB
Lossless JPEG98.3 KB
Canon sRAW CR257.34 KB
Canon mRAW CR286.02 KB
Nikon NEF 14-bit uncompressed114.69 KB
Nikon NEF 14-bit lossless compressed63.66 KB
Nikon NEF 14-bit compressed55.34 KB

Compare to

1280x720 (720p)1440x1080 (non-square 1080p)16K TV4K TV (UHD-1)8K TV (UHD-2)Full HD TV (16:9)HD Ready TV (768p)NTSC TVPAL TV

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 calculators & converters

Aspect ratio
Image Width x Height → aspect ratio
Aspect Fit
Fit an image on a screen
Composition Calculator
Focal length, distance, crop factor → image composition
Depth-of-Field Calculator
Aperture, focal length, 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
Portrait distance
portrait distance, composition, crop factor, focal length