8 × 10 in → 2400 × 3000 px
Print preparation guide
What Resolution Do You Need for Printing?
Compare 150, 240 and 300 PPI for different print sizes and viewing distances, with formulas and practical examples.
Quick answer
Use the PPI requested by the print provider. As a planning guide, 300 PPI suits detailed work viewed closely, 240 PPI can be a practical photographic middle ground, and 150 PPI may suit larger work viewed farther away.
required pixels = print inches × target PPI8 × 10 in → 1920 × 2400 px
8 × 10 in → 1200 × 1500 px
Decision table
Pixel requirements for an 8 × 10 inch print
| Target | Required pixels | Approx. megapixels | Use context |
|---|---|---|---|
| 300 PPI | 2400 × 3000 | 7.2 MP | Detailed photos and material viewed closely |
| 240 PPI | 1920 × 2400 | 4.6 MP | Strong photographic detail when the provider accepts it |
| 150 PPI | 1200 × 1500 | 1.8 MP | Larger or more distant viewing; fine detail is less forgiving |
Worked case: one photo, two viewing conditions
A 4500 × 3000 px source is proposed for a 30 × 20 inch wall print. The geometry is a 3:2 match, so no ratio crop is needed. A small tabletop reproduction and a wall print can have different viewing distances, but neither deserves an automatic approval from one PPI number.
4500 ÷ 30 = 150 PPI and 3000 ÷ 20 = 150 PPI. At 300 PPI the same source is 15 × 10 inches. At 240 PPI it is 18.75 × 12.5 inches.
What to do with the result
Ask the printer for a target for the wall product and intended viewing distance. Inspect faces, texture and text in a final-scale sample. If people will stand close or the picture contains fine lettering, consider a smaller print or stronger source. A higher printer DPI does not change the photo’s source density.
- State the viewing distance and product.
- Check actual sharpness at final scale.
- Use the printer’s requirement, not a universal threshold.
300 PPI for detailed, close-viewed work
Three hundred PPI is a common target for photographs, brochures, books and other material viewed at arm's length. It gives fine image detail a dense source without implying that the printer itself outputs only 300 dots per inch.
It is still a target, not proof of quality. Focus, compression, sharpening, paper and production settings matter too.
240 PPI as a practical middle ground
Many photographs can reproduce with strong detail at 240 PPI. It is useful when a file narrowly misses 300 PPI or when a larger print is needed without aggressive upsampling.
Acceptance is product specific. A print lab may allow it for photos but require more for small type, line art or a different process.
150 PPI for larger or more distant viewing
Posters and display graphics viewed from farther away may use 150 PPI or another lower requirement. The viewing distance reduces how easily a person can resolve individual image pixels.
Small typography, QR codes and fine line work are less forgiving than broad photographic detail. Keep vector elements vector when the production workflow supports them.
Viewing distance changes the decision
A small print invites close inspection, while a large wall piece is often viewed from several feet away. That does not make every low-resolution enlargement acceptable; it explains why one target cannot describe every print product.
The printer's requirement is the final gate
Ask for the final trim size, bleed, preferred file format, color profile and minimum or recommended image PPI. Calculate from the post-crop pixels and avoid promising a result based on a generic threshold alone.
Practical workflow
Use this order before you export.
- Choose the final physical trim size.
- Confirm the provider's minimum and recommended PPI.
- Multiply each printed inch by the target PPI.
- Compare the required dimensions with the usable pixels after crop.
Sources and method
Check the requirement behind the number.
These guides explain repeatable calculations and planning ranges. The print provider's written specification remains the final production requirement.
Put the guide into practice
Convert pixels to print size →300 PPI is a common high-detail target; print process and viewing distance can justify a different requirement.
Use the linked calculator with your own dimensions, then verify the result against the provider's production requirement.