How many pixels do I need for an 8 by 10 inch print?

At 300 PPI, an 8 by 10 inch print requires 2400 by 3000 pixels. At 150 PPI, it requires 1200 by 1500 pixels.

Should I use 150 or 300 PPI?

300 PPI is a common target for detailed prints viewed up close. 150 PPI may be practical for larger prints viewed from farther away. Check the printer's requirements.

Reverse calculator · Print planning

Inches to Pixels Converter

Q: How do I convert inches to pixels?

Multiply the number of inches by the selected pixels-per-inch value. Six inches at 300 PPI requires 1800 pixels.

Work backward from the physical size you need. Enter inches and PPI to calculate the pixel dimensions required for a screen layout, photo print, poster, or design file.

Formulapixels = inches × PPI

Required resolution

Convert inches to pixels

Live

Widthin Height optionalin

PPIPPI

Required pixels 1800 × 1200 px 2.16 MP

6 × 4 in at 300 PPI requires 1800 × 1200 px.

6 × 4 in1800 × 1200 px at 300 PPI

8 × 10 in2400 × 3000 px at 300 PPI

12 × 18 in3600 × 5400 px at 300 PPI

24 × 36 in3600 × 5400 px at 150 PPI

Method · 01

How to calculate the pixels you need

The physical size alone is not enough. PPI determines how many image pixels are assigned to every printed inch.

Choose the final size

Enter the intended width and height in inches. Use the finished trim size, not the size shown in an editor at an arbitrary zoom level.

Choose a realistic PPI

Use the printer's specification when available. 300 PPI is common for detailed work; 150 PPI can suit larger pieces viewed from farther away.

Multiply each dimension

Multiply width and height separately by PPI. A 10-inch edge at 300 PPI needs 3000 pixels along that edge.

Quick reference · 02

Common print sizes at 300 PPI

Print size	Required pixels	Approx. megapixels
4 × 6 in	1200 × 1800 px	2.16 MP
5 × 7 in	1500 × 2100 px	3.15 MP
8 × 10 in	2400 × 3000 px	7.2 MP
11 × 14 in	3300 × 4200 px	13.86 MP
12 × 18 in	3600 × 5400 px	19.44 MP

File planning

Plan whole pixels, trim size and bleed separately

The exact calculation is inches × PPI. A raster file needs whole pixels, so this calculator rounds each required edge upward instead of rounding below your target.

A fractional-inch edge

1.001 in × 300 PPI = 300.3 pixels. Use at least 301 pixels to meet that requested density. Forcing 300 pixels would give slightly less than 300 PPI.

An 8 × 10 in finished print

At 300 PPI, the trim-size image is 2400 × 3000 pixels. This is the image requirement, not the printer's DPI setting.

If the printer asks for ⅛ in bleed

Add ¼ in to both dimensions: 8.25 × 10.25 in. At 300 PPI the full canvas is 2475 × 3075 pixels. Bleed is an example only; use your printer's exact specification.

Changing canvas dimensions or enlarging a file does not prove the original image contains enough detail. If you already have a photo, use the print-fit and cropping example first. To understand the export settings, see PPI, DPI and resampling.

Calculation and examples reviewed September 6, 2026. Results are dimensional estimates, not print-quality guarantees.

Questions · 03

Inches-to-pixels questions

How do I convert inches to pixels?

Multiply inches by PPI. For example, 6 inches × 300 PPI equals 1800 pixels.

How many pixels do I need for an 8 × 10 print?

At 300 PPI, use 2400 × 3000 pixels. At 150 PPI, use 1200 × 1500 pixels.

Should I always use 300 PPI?

No. It is a common target for close-viewed detailed prints, but viewing distance, printer capability, source image, and production process also matter.