5 min read
2026-02-28
| Platform | Format | Ratio |
|---|---|---|
| YouTube | Horizontal | 16:9 |
| TikTok | Vertical | 9:16 |
| Instagram Reels | Vertical | 9:16 |
| Instagram post | Square | 1:1 or 4:5 |
| YouTube Shorts | Vertical | 9:16 |
Leave additional space at the edges of the frame — this way you can crop the video for different platforms.
Over 70% of video views happen on mobile devices. Vertical content fills the entire phone screen.
If the source format doesn't match the target, it's better to add a background or crop rather than stretch the image.
Before publishing, make sure the thumbnail and key elements are visible in the chosen format. Some platforms crop previews.
Horizontal video — YouTube, websites, TV
Vertical video — TikTok, Reels, Shorts
Square video — social media feed posts
Calculate dimensions in the Aspect Ratio Calculator.
See also: Noise Generator, Metronome
Calculate aspect ratios and resolutions for YouTube, TikTok, Instagram and screens
Open tool