Create a print document from scratch
Convert a required trim size into the exact pixel width and height before designing.
Free inches to pixels calculator
Convert inches to pixels for print.
Enter the physical size you need, choose a density, and get the required width and height in pixels without uploading a file.
Instant resultsNo signupRuns in your browser
Required pixel dimensions2,400 × 3,000 pxat 300 PPI
Also useful7.2 megapixels
When to use it
Start with the result you need
This calculator is most useful when one part of the print specification is known and another needs to be checked.
Prepare an A-series page
Enter millimetres for A4, A3 or another paper standard without converting the units manually.
Check a supplied template
Compare the template’s pixel dimensions with its physical size and requested PPI.
The calculation
How it works
Multiply the physical size by pixels per inch: pixels = inches × PPI. An 8-inch side at 300 PPI needs 2400 pixels.
Centimetres and millimetres are first converted to inches because PPI is defined per inch. One inch equals exactly 2.54 centimetres.
Quick reference
Popular print sizes at 300 PPI
These are trim dimensions before bleed. Metric conversions are rounded to the nearest whole pixel.
| Print size | Physical dimensions | Pixels at 300 PPI |
|---|---|---|
| 4 × 6 photo | 4 × 6 in | 1200 × 1800 px |
| 8 × 10 print | 8 × 10 in | 2400 × 3000 px |
| US Letter | 8.5 × 11 in | 2550 × 3300 px |
| A4 | 210 × 297 mm | 2480 × 3508 px |
| A3 | 297 × 420 mm | 3508 × 4961 px |
| 24 × 36 poster | 24 × 36 in | 7200 × 10800 px |
If your printer requests bleed, calculate the larger full-document size rather than using the trim value alone.
Check the numbers
8 × 10 inches at 300 PPI
Create a document measuring 2400 × 3000 pixels before adding any printer-specific bleed.
A4 at 300 PPI
An A4 page measuring 210 × 297 mm needs approximately 2480 × 3508 pixels.
24 × 36 inches at 150 PPI
A large poster requires 3600 × 5400 pixels before bleed. Confirm whether the provider accepts 150 PPI.
Before you export
Common mistakes to avoid
Forgetting bleed
Edge-to-edge artwork usually needs a document larger than the final trim size. Add bleed before converting to pixels.
Using screen PPI for print
A 96 PPI screen convention is not automatically a suitable print target. Use the production requirement.
Rounding the physical size too early
Keep the exact inch or metric measurement through the calculation, then round only the final pixel result.
Convert inches to pixels for print. FAQ
How many pixels is 1 inch?
At 300 PPI, 1 inch is 300 pixels. At 96 PPI, 1 inch is 96 pixels. The density must be known before inches can be converted to pixels.
Should bleed be included in the pixel size?
Only if your printer requires it. Calculate the full document size after adding bleed to every edge, then convert that larger size to pixels.
Can I convert centimetres to pixels here?
Yes. Select centimetres or millimetres as the input unit and the calculator performs the inch conversion automatically.
Reviewed for accuracy: 28 July 2026