Speedy Calculator

Pixels to Print Size Calculator

Other Updated October 25, 2026

Quick answer

The print size calculator shows how large you can print a digital image at a chosen quality (DPI), in inches and centimetres, and the effective resolution at a given print size.

px
px
Print width
—
Print height
—
Megapixels
—

For sharp photo prints, 300 DPI is standard; 150 DPI is usually fine for posters viewed from a distance.

How to use the Pixels to Print Size Calculator

  1. Image width
  2. Image height
  3. Print quality

Results update as you type, and every field accepts the units shown in its menu.

How it works

Divide the pixel dimensions by the print resolution in dots per inch.

Inputs explained

Field What to enter
Image width In px
Image height In px
Print quality Choose one: Photo, 300 DPI, Good, 240 DPI, Poster, 150 DPI, Billboard, 30 DPI

What each result means

  • Print width = [Image width]÷[Print quality]
  • Print height = [Image height]÷[Print quality]
  • Megapixels = [Image width]×[Image height]÷1e6

Example values

How the main result changes when Image width changes and everything else stays at the example values above:

Image width (px) Print width (in)
3,000 10
4,500 15
6,000 20
7,500 25
9,000 30
12,000 40

Formula

Print size (in) = pixels ÷ DPI

Worked example

Inputs — Image width: 6,000 px; Image height: 4,000 px; Print quality: Photo, 300 DPI.
Results — Print width = 20 in; Print height = 13.33 in; Megapixels = 24.

Frequently asked questions

Can I print larger than this?

Yes, at lower DPI, with some loss of sharpness up close.

Does upscaling help?

AI upscaling can help, but it cannot add real detail.

What formula does the Pixels to Print Size Calculator use?

Print size (in) = pixels ÷ DPI.

Cite this calculator

Speedy Calculator. (2026). Pixels to Print Size Calculator. Speedy Calculator. https://speedycalculator.com/calculators/other/print-size/