Best Image Size for Websites: A Practical Guide
Choose useful image dimensions for website heroes, blog images, product photos, thumbnails, and retina displays without wasting page weight.
The best website image size is not one universal number. It depends on where the image appears. A small thumbnail, a product gallery, and a full-width hero all need different pixel dimensions.
Use the largest actual display size as your starting point. If a blog image appears at 900 pixels wide, exporting a 900 to 1800 pixel wide version is usually more practical than uploading a 4000 pixel original.
Useful starting points
| Use case | Practical width |
|---|---|
| Blog content image | 900-1400 px |
| Full-width hero | 1600-2400 px |
| Product gallery | 1200-2000 px |
| Thumbnail | 300-600 px |
| Logo | Depends on layout; SVG is often better |
Resize copies with the Image Resize Tool, then compress delivery files with the Image Compressor.
FAQ
What size should a website image be?
It should be close to the largest size where it appears on the page, with extra pixels only when high-density screens need them.
Is bigger always better for quality?
No. Oversized files slow pages down and may still be recompressed by the platform.