Interactive browser tool

Calculate Any Paper Size in Pixels

Choose an ISO, US or photo format and calculate its pixel dimensions at any PPI, in portrait or landscape orientation.

Quick answer

Choose the physical preset, orientation and PPI. The calculator converts the stored ISO, US or photo dimensions from millimetres to inches, multiplies by PPI and rounds the final pixel count once.

pixels = millimetres ÷ 25.4 × PPI
Interactive calculator
pixels = millimetres ÷ 25.4 × PPI

Paper preset → pixel dimensions

Quick targets
Calculated resultsUpdates as you change the inputs
Trim sizeResult
210 × 297 mm
Trim size in inchesResult
8.27 × 11.69 in
A4 at common targets
TargetWidthHeight
150 PPI1240 px1754 px
240 PPI1984 px2806 px
300 PPI2480 px3508 px
How to use it

A result you can reproduce.

  1. Choose a physical paper or photo preset.
  2. Set portrait or landscape orientation.
  3. Choose a PPI and copy the required pixel dimensions.

Every result is calculated in the page from the displayed inputs. Your printer's written production specification remains the final authority.

Worked example

See the numbers in context.

A4 is 210 × 297 mm, which rounds to 2480 × 3508 px at 300 PPI and 1240 × 1754 px at 150 PPI.

Open the A4 size reference
Check before you print

Use the image, not a guess.

Run the source pixels against the exact size you plan to order.

Check an image