Question 1

What is the difference between DPI and PPI?

Accepted Answer

DPI (dots per inch) refers to printing resolution, while PPI (pixels per inch) refers to screen display. They are often used interchangeably but have distinct meanings.

Question 2

How do I calculate print size from pixel dimensions?

Accepted Answer

Divide pixel dimensions by your target DPI. For example, 3000×2000 pixels at 300 DPI prints at 10×6.67 inches. This calculator handles these conversions.

Question 3

What resolution do I need for quality prints?

Accepted Answer

For photo prints, 300 DPI is standard. For large format or viewing from distance, 150 DPI may suffice. This calculator helps determine required pixels for your print size.

Question 4

How do megapixels relate to image dimensions?

Accepted Answer

Megapixels = width × height in millions. A 12MP camera produces ~4000×3000 pixel images. This calculator converts between megapixels and actual dimensions.

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