Crop BMP Images to 1:1 (Square)
The 1:1 Square ratio is used for: Instagram posts, profile pictures, product photos, album covers, app icons. Perfect square format — the universal social media ratio. Used for Instagram posts, profile pictures, and any content designed to look consistent in a grid layout. When preparing BMP images in 1:1 format, optimize file size alongside the crop — ImageSmith compresses your BMP to the perfect size for any platform. Common 1:1 dimensions: 1080×1080, 800×800, 400×400.
Aspect Ratio
1:1
Name
Square
Format
BMP
Example size
1080×1080, 800×800, 400×400
▸Instagram posts
▸profile pictures
▸product photos
▸album covers
▸app icons
Reduce file size too?
Compress your BMP — instant, browser-based, free.