Print size to pixels calculator
Handy when you prepare a design for a card, banner or photo of a set size, so you start at the right dimensions.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter width, height, unit and resolution.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Pixels = (size in mm ÷ 25.4) × DPI, rounded to the nearest pixel. Megapixels = width × height ÷ 1,000,000.
Example
Inputs: Width = 20, Height = 30, Unit = Centimetres, Resolution = 300 DPI. Result: Pixel dimensions: 2362 × 3543 px; Width: 2,362 px; Height: 3,543 px.
Limits and caveats
- Bleed is not added; many printers ask for an extra 3 mm on each side.
Questions about this tool
How many pixels is an 85 × 55 mm business card?
About 1004 × 650 pixels at 300 DPI, before bleed.
How many pixels is 1 cm?
About 118 pixels at 300 DPI and about 38 pixels at 96 DPI.
What DPI suits large banners?
Banners seen from a distance are often printed at 100 to 150 DPI.