Crop BMP Images to 3:1 (Wide Banner)
The 3:1 Wide Banner ratio is used for: website masthead, LinkedIn cover, store banners, email headers, wide promotional banners. Very wide banner ratio for website masthead headers, LinkedIn cover photos, and extra-wide promotional banners that span full page width. When preparing BMP images in 3:1 format, optimize file size alongside the crop — ImageSmith compresses your BMP to the perfect size for any platform. Common 3:1 dimensions: 1500×500, 1200×400, 1800×600.
Aspect Ratio
3:1
Name
Wide Banner
Format
BMP
Example size
1500×500, 1200×400, 1800×600
▸website masthead
▸LinkedIn cover
▸store banners
▸email headers
▸wide promotional banners
Reduce file size too?
Compress your BMP — instant, browser-based, free.