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Digital Image Resolution Converter

Digital image resolution refers to the detail an image holds, typically measured in pixels per unit of distance. Higher resolution means more detail and potentially larger print sizes without visible pixelation.

Digital Image Resolution Converter

Convert between different units of digital image resolution

About Digital Image Resolution Units

Digital image resolution is measured in various units, including:

  • Pixels per inch (PPI): The number of pixels in one inch of a digital image
  • Dots per inch (DPI): Technically a printer specification, but often used interchangeably with PPI
  • Pixels per centimeter (PPCM): The number of pixels in one centimeter
  • Lines per inch (LPI): Used in halftone printing to specify screen frequency

Common Resolution Standards

Different applications require different resolution standards:

  • Web images: Typically 72-96 PPI
  • Standard printing: 300 DPI
  • High-quality photo printing: 300-600 DPI
  • Fine art or large format printing: 150-300 DPI (viewed from a distance)
  • Magazine printing: 150-300 LPI
  • Newspaper printing: 85-100 LPI

Resolution vs. Image Size

It's important to understand the relationship between resolution and image size:

  • A 1000×1000 pixel image at 100 PPI will print at 10×10 inches
  • The same 1000×1000 pixel image at 300 PPI will print at 3.33×3.33 inches
  • Changing the resolution without resampling doesn't change the total number of pixels

Common Applications

Digital image resolution measurements are important in:

  • Photography and digital imaging
  • Print design and production
  • Web design and development
  • Display manufacturing
  • Scanner and camera specifications