The Ultimate Guide to Image Sizes for Your Website & Social Media

Kris Castillo
Jan 1
2 min read

When it comes to building your online presence, visuals matter. From your website favicon to your LinkedIn banner, using the correct image sizes ensures your brand looks professional and consistent everywhere. Uploading the wrong size can make logos look blurry, cropped, or stretched—hurting the impression you want to make.

Here’s a simple breakdown of the most important image sizes to keep in mind:

🔹 Website & Branding Image Sizes

Favicon – 512 × 512 px (minimum 32 × 32 px), PNG
Link Preview / Open Graph – 1200 × 630 px, PNG or JPG (this controls how your site looks when shared on social media)
Square Logo (Master File) – 1080 × 1080 px, PNG (easy resizing for any platform)

💡 Tip: Always save your master logo file in PNG for transparency and resizing flexibility.

🔹 Social Media Profile & Cover Images

Facebook Profile – 180 × 180 px
Facebook Cover – 820 × 360 px
Instagram Profile – 320 × 320 px
LinkedIn Profile – 400 × 400 px
LinkedIn Banner – 1584 × 396 px
Twitter/X Profile – 400 × 400 px
Twitter/X Header – 1500 × 500 px

💡 Tip: Keep your profile pictures square, centered, and high contrast. Remember that profile photos are displayed in a circle on most platforms.

🔹 Blog & Feature Images

Blog Featured Image – 1200 × 800 px (or 1200 × 630 px for consistency with link previews)

💡 Tip: Use Canva, Photoshop, or similar tools to size and export correctly. For example, in Canva you can select a Facebook post (1200 × 630) template, upload your image, adjust to fit, and export.

Why Image Sizes Matter

Consistency: Keeps your brand looking polished everywhere
Performance: Correctly sized images load faster, improving user experience and SEO
Clarity: Prevents blurry or cropped logos and banners
Engagement: Well-sized visuals attract more clicks, likes, and shares

Final Thoughts

Getting your image sizes right is one of those small details that makes a big difference. Whether you’re building your website, posting to social media, or publishing blog content, keeping a cheat sheet of these dimensions will save you time and headaches.

At CastleDigi, we make sure every brand asset—from your favicon to your Facebook banner—looks sharp and professional. If you need help setting up your visuals or want a full digital refresh, we’ve got you covered.