📷 照片與影片
PPI 計算器
Enter the pixel resolution and diagonal size to compute pixel density and quality rating.
Result will appear here
公式
PPI = √(width² + height²) ÷ diagonal inches
📷 照片與影片
Enter the pixel resolution and diagonal size to compute pixel density and quality rating.
Result will appear here
PPI = √(width² + height²) ÷ diagonal inches