Photo Print Size
See the maximum print dimensions a pixel file supports at a set DPI.
About Photo Print Size
Dividing each pixel dimension by the target DPI gives the native print size in inches on that axis. Before ordering enlargements it is worth confirming the file still has enough pixels for the DPI you want to print at.
Formula
Photo Print Size
Print size = pixels / DPI (per axis)
- Dpi
- Dots per inch, the chosen print resolution
Worked example
With the default values below, Photo Print Size returns Print Width of 13.33. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Widthminimum 1 px
- 4,000 px
- Heightminimum 1 px
- 3,000 px
- Resolutionaccepts 10–1,200 dpi
- 300 dpi
Results
- Print Width
- 13.33 in
- Print Height
- 10.00 in
- Megapixels
- 12.00 MP
Step by step
- 1Values used
- 2Photo Print Size
- 3Print Width= 13.33 in
- 4Print Height= 10.00 in
- 5Megapixels= 12.00 MP
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Photo Print Size calculated?
Print size = pixels / DPI (per axis) Dividing each pixel dimension by the target DPI gives the native print size in inches on that axis.
Why does Photo Print Size matter?
Before ordering enlargements it is worth confirming the file still has enough pixels for the DPI you want to print at.
What values do I need to enter?
This calculator takes 3 inputs: Width, Height, Resolution. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.