Video Aspect Ratio Calculator
Use this video aspect ratio calculator to convert dimensions for YouTube, TikTok, Instagram Reels, Shorts, webinars, ads, thumbnails, and widescreen exports.
Dimensions
px
px
Aspect Ratio
16:9
Resolution
1920×1080
Display
Photo
Video
Social
Preview
16:9
Landscape1.778
How to calculate video aspect ratio
Enter the video width and height to simplify the ratio. For example, 1920x1080 becomes 16:9, 1080x1920 becomes 9:16, and 1080x1350 becomes 4:5.
Common pixel sizes
- 1920x1080 (16:9)
- 3840x2160 (16:9)
- 1080x1920 (9:16)
- 1080x1350 (4:5)
- 1080x1080 (1:1)
- 2560x1080 (ultrawide)
Common video formats
- YouTube videos and thumbnails
- TikTok, Reels, Stories, and Shorts
- Social video ads
- Webinars and screen recordings
- Cinematic and ultrawide exports
Video ratio examples
1920x1080 = 16:9
1080x1920 = 9:16
1080x1350 = 4:5
Frequently asked questions
What aspect ratio is YouTube video?
Standard YouTube video is 16:9. YouTube Shorts are vertical and usually use 9:16.
What aspect ratio is TikTok or Instagram Reels?
TikTok videos and Instagram Reels are typically 9:16, commonly exported at 1080x1920.
Can I convert a video from 16:9 to 9:16?
Yes, but it requires cropping, reframing, or adding background space. The calculator helps you plan the target dimensions.