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Calcimator

Megapixel Calculator

Calculate megapixels from image dimensions. See print sizes at different DPI and estimate file sizes for RAW and JPEG formats.

Inputs

px
px

Results

Megapixels

24 MP

Print Size at 300 DPI

20" x 13.3"

Total Pixels24,000,000
Print Size at 150 DPI40" x 26.7"
Print Size at 72 DPI83.3" x 55.6"
Uncompressed RGB (8-bit)68.7 MB
Estimated RAW File40.1 MB
Estimated JPEG File6.87 MB
Print Quality AssessmentVery good — large prints up to 24x36"
How to Use This Calculator
  1. Enter Image Width and Image Height.
  2. Review Megapixels (MP) and Print Size at 300 DPI.
  3. Use Total Pixels and Print Size at 150 DPI to inform your decision.

How the result changes with Image Width

Image WidthMegapixelsPrint Size at 300 DPI
10,00140 MP33.3" x 13.3"
35,001140 MP116.7" x 13.3"
65,000260 MP216.7" x 13.3"
90,000360 MP300" x 13.3"

What each input means

Image Width
Image width in pixels.
Image Height
Image height in pixels.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    Image Width = 6000, Image Height = 4000 = 2 input(s) provided
  2. Calculate Megapixels
    Megapixels
    24 = 24
  3. Calculate Print Size at 300 DPI
    Print Size at 300 DPI = `${printAt300W
    20" x 13.3" = 20" x 13.3"
  4. Calculate Total Pixels
    Total Pixels
    24000000 = 24000000
  5. Calculate Print Size at 150 DPI
    Print Size at 150 DPI = `${printAt150W
    40" x 26.7" = 40" x 26.7"

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