Guides

Plain-English explanations, with formulas and worked examples.

• How to Choose the Right Image Resolution for Printing

  Match DPI to viewing distance and print size, and check your image before you print.

• DPI vs PPI: What's the Difference?

  PPI describes pixel density on a display; DPI describes dots per inch in printing. They are related, but not the same measurement.

• How Mouse DPI and Sensitivity Work

  DPI sets how many counts your mouse reports per inch; sensitivity scales those counts in game. Together they set your turn speed.

• How to Calculate Image DPI

  Divide pixel width by print width in inches. Worked examples for photos, posters and screen images.

• How to Calculate PPI

  PPI is diagonal pixels divided by diagonal inches. Worked examples for monitors, laptops and phones.

• How to Change Image DPI

  Changing DPI metadata changes the suggested print size, not the pixels. Learn what it does and what it cannot do.

• How Many Pixels Do You Need for Printing?

  Multiply print size in inches by your target DPI. A table for common photo, poster and paper sizes.

• What Is 300 DPI?

  300 DPI means 300 dots per inch in print. Learn what pixel dimensions that requires for common print sizes.

• What Is cm/360 in Gaming?

  cm/360 is the physical mouse distance for a full 360-degree turn. It is the fair way to compare sensitivity across games.

• What Is DPI?

  A plain-English explanation of DPI, effective print DPI, and why a DPI label alone does not describe image quality.

• What Is Image Resolution?

  Resolution is the pixel count of an image. Learn how it relates to megapixels, DPI and print size.

• What Is eDPI in Gaming?

  eDPI is mouse DPI multiplied by in-game sensitivity. It compares settings within one game — not across games.