Image dimensions
Resolution & megapixel calculator
Translate width and height into total pixels, megapixels, ratio, and raw memory. Or estimate dimensions from a megapixel target.
MP = width × height ÷ 1,000,000
01 / Image data
px
px
Dimensions from megapixels
MP
Raw memory excludes file compression, metadata, layers, and application overhead.
02 / Image profile
24 MP24,000,000 pixels
Aspect ratio3:2
OrientationLandscape
Raw memory72 MB
24 MP at chosen ratio6000 × 4000 px
Three different sizes
Resolution, storage, and print size are related—not identical.
Pixel dimensions tell you how many samples an image contains. Megapixels express the same count in millions. File size depends on compression and format, while print size depends on how densely those pixels are placed on paper.
pixels = width × height
raw bytes = pixels × channels × bit depth ÷ 8
raw bytes = pixels × channels × bit depth ÷ 8