Thumbnail size is 150 × 150 pixels
Medium size is 300 × 300 pixels
Single-thumb size is 512 × 375 pixels
Sidebar-thumb size is 36 × 36 pixels
Featured-slideshow-thumb size is 512 × 300 pixels
Node-based-thumb size is 215 × 120 pixels
Quick-preview-thumb size is 115 × 115 pixels
Full size is 512 × 512 pixels