Understanding DPI and Pixel Conversion

DPI (dots per inch) measures printing resolution, indicating how many ink dots a printer can place in one inch. Pixels are the smallest units of a digital image. Converting between them ensures images print at the desired size and quality.

How to Use This Converter

For DPI to Pixels: Enter DPI value and physical dimensions in inches. Click calculate to get pixel width and height.
For Pixels to DPI: Enter pixel dimensions and the physical size (diagonal, width, or height) in inches. Click calculate to get DPI.

Common DPI Values

Use Case	Recommended DPI
Web Images	72-96 DPI
Office Documents	150-200 DPI
High-Quality Printing	300 DPI
Professional Photography	600+ DPI

Important Notes

DPI is often confused with PPI (pixels per inch). DPI refers to printer resolution, while PPI refers to screen resolution.
Higher DPI values result in sharper prints but require more pixels. An image with insufficient pixels may appear pixelated when printed at high DPI.
Always consider the viewing distance. Large format prints (e.g., banners) can use lower DPI since they're viewed from farther away.

Paper Size	Inches	Pixels @ 300 DPI
Letter	8.5 × 11	2550 × 3300
A4	8.27 × 11.69	2481 × 3507
4×6 Photo	4 × 6	1200 × 1800

Paper Size

Inches

Pixels @ 300 DPI

Letter

8.5 × 11

2550 × 3300

8.27 × 11.69

2481 × 3507

4×6 Photo

4 × 6

1200 × 1800

FAQ

Is DPI the same as PPI?

No. DPI (dots per inch) refers to printer resolution, while PPI (pixels per inch) refers to screen resolution. They are often used interchangeably but technically different.

What DPI should I use for web images?

Web images typically use 72-96 DPI. Since screens have fixed pixel dimensions, DPI primarily affects printing, not screen display.

Why does my image look pixelated when printed?

This usually means the image has too few pixels for the print size. Increase the pixel dimensions or lower the DPI setting to avoid stretching pixels.

DPI to Pixels Converter

DPI to Pixels

Pixels to DPI

Menu

Digital Image Resolution Converter DPI to Pixels

AI Assistant

Was this tool helpful?