The number of pixels in 4 inches depends on the resolution of the screen or the image you're referring to. Pixels (px) are a unit of measurement commonly used in digital imaging. The resolution determines how many pixels fit into one inch.
The formula is: Inches × Pixels per Inch (PPI) = Pixels
For 4 inches at 72 DPI equals 288 Pixels
For 4 inches at 96 DPI equals 384 Pixels
For 4 inches at 300 DPI equals 1200 Pixels
Do you have a different resolution of the screen? Use the tool below to convert inches to pixels using any PPI value you have. Just replace your PPI with the one you want and start to convert.
PPI:
Value(Inches):
Value(Pixels):