ost Effective Banner Ad Sizes That Generate the Highest Conversions Banner ads mostly appear at the top, bottom, or on the sides of a webpage Although banner advertising is the most cost effective way of advertising, it still has many benefits When designing banners for display advertising, choosing the right size is one of the most crucial decisions to make The performance of advertisements can be greatly impacted by the banner size, and making the appropriate decision can improve your marketing outcomes www.bigeasymagazine.com Medium rectangle (300×250 ad size) Mobile leaderboard (320×100 ad size) Large rectangle (336×280 ad size) Leaderboard (728×90 ad size) Half page or large skyscraper (300×600 ad size)