Thumbnail Size Reference
Quick reference for video thumbnail dimensions across all platforms
Result
Platform
Youtube
Recommended Size
1280 x 720 pxAspect Ratio16:9
Max File Size2 MB
FormatsJPG, PNG, GIF, BMP
TipsUse high contrast, readable text, expressive faces. Avoid misleading thumbnails.
About This Tool
The Thumbnail Size Reference tool converts video duration between mm:ss, seconds, and HH:mm:ss formats. Ideal for content creators needing to match timecodes with social media guidelines.
Simply input the video duration in any format; the tool outputs it in all other supported formats. No complex calculations needed.
Use cases include matching video clips to specific time markers or preparing videos for upload across various platforms. Runs entirely in your browser, no data is sent anywhere.