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 = 180 x 180 = 32,400 pixels
  • Pixel count = 32.4 thousand pixels
  • Resolution = 32.4 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 5 pixels/mm or 130 pixels/inch (dpi)
  • Pixel pitch: 200 micron (rather large)

Calculate (file) size

Compressed image formats (estimated size)

JPG 100% 24bit/pixel6.62 KB
JPG 90% 24 bit/pixel3.31 KB
GIF 8bit/pixel, 255 colors9.92 KB
PNG losless 24bit/pixel18.83 KB
Lossless JPEG48.6 KB
Canon sRAW CR228.35 KB
Canon mRAW CR242.53 KB
Nikon NEF 14-bit uncompressed56.7 KB
Nikon NEF 14-bit lossless compressed31.47 KB
Nikon NEF 14-bit compressed27.36 KB

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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

Wikipedia: Pixels & megapixels
Wikipedia: Common resolutions
Camera Resolution explained
Canon RAW, sRAW, mRAW

Photo calculators & converters

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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