FrameCutter's free aspect ratio tool shows your video or picture cropped to 9:16, 4:5, 1:1 and 16:9 side by side, and works out the ratio and sizes from a width and height.
9:16 TikTok, Reels, Shorts
4:5 Instagram feed
1:1 Square posts
16:9 YouTube
Ratio 9:16. At this width: 9:16 is 1920 high, 1:1 is 1080, 16:9 is 608.
Last updated 23 October 2026
Four shapes at once
9:16, 4:5, 1:1 and 16:9 side by side.
A calculator too
The ratio and the sizes for each shape.
Nothing uploaded
Your file stays on your device.
Questions
9:16, a vertical video. 1080 by 1920 pixels is the common size.
A tall rectangle used in the Instagram feed: 1080 by 1350 pixels.
Cropping keeps the pixels inside the frame and drops the rest, so a wide video cropped to 9:16 keeps less of the picture.
Got the footage? Let FrameCutter edit it.
Upload a take, say how you want it, and get a video ready to post.
