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 = 375 x 375 = 140,625 pixels
  • Pixel count = 141 thousand pixels
  • Resolution = 141 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 10 pixels/mm or 260 pixels/inch (dpi)
  • Pixel pitch: 96 micron (rather large)

Calculate (file) size

Compressed image formats (estimated size)

JPG 100% 24bit/pixel28.7 KB
JPG 90% 24 bit/pixel14.4 KB
GIF 8bit/pixel, 255 colors43.1 KB
PNG losless 24bit/pixel81.7 KB
Lossless JPEG211 KB
Canon sRAW CR2123 KB
Canon mRAW CR2185 KB
Nikon NEF 14-bit uncompressed246 KB
Nikon NEF 14-bit lossless compressed137 KB
Nikon NEF 14-bit compressed119 KB

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.


Photo tools

Aspect ratio
Image Width x Height → aspect ratio
Composition calc
Focal length, subject distance, crop factor → image composition
Aperture, focal length, subject distance, crop → depth-of-field
DPI calculator
Print Width x Height and dpi → megapixels
Image filesizes
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