DPI to Pixels Converter
DPI on its own is not a pixel count — it is a rate. Give it a physical size and it becomes one. Set the DPI and the size in inches below to get the pixels you need.
Type in either field — the other one follows instantly.
How to convert DPI to pixels
Multiply the DPI by the number of inches: pixels = DPI × inches. 300 DPI across 6 inches is 1800 pixels. The same 300 DPI across 20 inches is 6000 pixels — the DPI has not changed, only the area it covers.
To go the other way, divide: DPI = pixels ÷ inches. That is how you find out what density an existing file will actually print at.
Worked with the values in the calculator above
inches = 300 px ÷ 300 PPI = 1 in
pixels = 1 in × 300 PPI = 300 px DPI, PPI and pixels per inch
Converting pixels per inch to DPI needs no arithmetic — they are the same number expressed for a different device. A file tagged 300 PPI sent to a printer asking for 300 DPI is already correct.
What does differ is the printer’s own dot resolution. An inkjet advertised at 2400 DPI is describing ink droplets, not image pixels, and still wants a 300 PPI file.
At the density above
One inch square at 96 PPI
96 × 96 = 9,216 pixels fill this square.
Frequently asked questions
How many pixels is a 24 × 36 poster at 150 DPI?
3,600 × 5,400 pixels. At 300 DPI it would be 7,200 × 10,800 — four times the file for a print read from across a room, which is why 150 is the usual choice at this size.
Should I send a 2400 DPI printer a 2400 PPI file?
No. 2400 DPI describes the printer's ink droplets, several of which build one image pixel. A 300 PPI file is what it wants; 2400 PPI would be sixty-four times the data for no visible gain.
How many pixels is 300 DPI?
300 DPI is 300 pixels for every inch of the finished print. Across 4 inches that is 1200 pixels; across 10 inches it is 3000.
Does higher DPI mean more pixels?
Only if the physical size stays the same. Doubling the DPI at a fixed print size doubles the pixels needed; halving the print size at a fixed pixel count doubles the DPI you get.