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Optimization•5 min read•September 10, 2026

Best Image Dimensions & Compression Formats for Websites in 2026

Heavy images are the primary cause of slow Largest Contentful Paint (LCP) scores. Discover standard dimensions for modern web design.

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Recommended Website Image Dimensions

Hero Banners & Full Width Headers: 1920x1080 px or 2560x1440 px (WebP format, under 200KB).

Blog Content Images: 1200x630 px (under 100KB).

E-commerce Product Thumbnails: 800x800 px (under 50KB).

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