What is the pixels-to-inches formula?

Divide the pixel dimension by the selected PPI. A 3000-pixel edge at 300 PPI prints 10 inches long.

Should I use 150, 240 or 300 PPI?

Use the requirement supplied by the printer. 300 PPI is a common target for detailed work viewed closely; lower targets may suit larger prints viewed farther away.

Does the calculation resize my image?

No. It divides the existing pixel dimensions by a target PPI. It does not add pixels, resample the file or change image quality.

Interactive browser tool

Convert Pixels to Print Size

Convert image dimensions in pixels into physical print dimensions in inches and centimetres at 150, 240, 300 or any custom PPI.

Quick answer

Divide each pixel dimension by the chosen PPI. The calculator shows inches and centimetres instantly, plus a side-by-side comparison at the common 150, 240 and 300 PPI planning targets.

print inches = pixels ÷ PPI

Interactive calculator

print inches = pixels ÷ PPI

Pixels → physical print size

Example values are pre-filled. Results always reflect the values currently shown; replace them with your own measurements before using the result.

Pixel width

Pixel height

Target PPI

PPI

Quick targets

Calculated resultsUpdates as you change the inputs

Print size in inchesPrimary result

10 × 6.67 in

Print size in centimetresResult

25.4 × 16.9 cm

Image aspect ratioResult

3:2

Same pixels at common print targets

Target	Inches	Centimetres
150 PPI	20 × 13.33	50.8 × 33.9
240 PPI	12.5 × 8.33	31.8 × 21.2
300 PPI	10 × 6.67	25.4 × 16.9

When to use this tool

Use it for a specific print decision.

Use it when a camera, scanner, stock image or exported design gives you pixel dimensions but you do not yet know the physical print size.
Use it to compare how the same file changes from a close-viewed 300 PPI print to a provider-approved 240 or 150 PPI enlargement.
Use it before resizing so you can decide whether the existing pixels are already sufficient for the product.

How to use it

A result you can reproduce.

Enter the image width and height in pixels.
Choose the intended pixels per inch.
Read the corresponding physical print dimensions.

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

Worked example · quick scenario

See the basic numbers in context.

A 3000 × 2400 px file is 10 × 8 inches at 300 PPI, 12.5 × 10 inches at 240 PPI and 20 × 16 inches at 150 PPI.

Choose a print-resolution target →

Worked calculation

Follow the arithmetic from input to decision.

Inputs

Image: 4032 × 3024 px
Planning target: 300 PPI

Calculation

4032 ÷ 300 = 13.44 in
3024 ÷ 300 = 10.08 in
Convert inches to centimetres by multiplying each edge by 2.54.

The uncropped file corresponds to about 13.44 × 10.08 in, or 34.14 × 25.60 cm, at 300 PPI.

Assumptions

What must be true for this calculation to apply.

The source pixel dimensions are known and no later crop will remove pixels.
PPI is applied equally in both directions.
The calculation does not resample or invent pixels.

From calculation to production

Verify the Pixels to print size result with your real file.

Divide each pixel dimension by the chosen PPI. The calculator shows inches and centimetres instantly, plus a side-by-side comparison at the common 150, 240 and 300 PPI planning targets. Then compare the result with the print provider's written specification.

Check an image →