Validate the aspect ratio of your video for YouTube Shorts. Check if your dimensions meet the 9:16 requirement instantly.
This checker takes width × height in pixels, simplifies the ratio, and tells you if it matches the 9:16 vertical frame Shorts expects — ideal before a long export. Drop in numbers straight from Premiere, CapCut, or your phone’s resolution menu.
Shorts prefer 1080×1920. Other shapes may upload but can miss the Shorts feed or show letterboxing; fix the canvas here first. A quick pass/fail readout keeps your editors aligned before anyone hits upload.
Four at-a-glance signals editors care about when locking a vertical master for Shorts.
We divide width and height by their greatest common divisor and show the simplified ratio so you can compare exports, storyboards, and deliverables at a glance.
YouTube Shorts expects a vertical 9:16 canvas with height greater than width, and this row states plainly whether your pixel pair satisfies that rule set.
A 1080×1920 master is the practical default most editors use because it stays crisp in the Shorts feed while remaining manageable for phones and laptops to encode.
When the check fails, we spell out whether the math is close but flipped, too wide, or simply not 9:16 so you know which preset or export setting to fix next.
Type your video's width and height in pixels, or paste a Shorts URL.
The tool calculates your aspect ratio and checks it against Shorts requirements.
See if your video passes, and get suggestions if it doesn't.
Shorts are consumed on mobile. Getting the ratio right means edge-to-edge display.
Catch ratio problems before you render and waste export time.
Only correctly-ratio'd videos appear in the dedicated Shorts feed.
Paste dimensions from your editor and get a pass/fail in seconds.
Confirm timeline or sequence settings match 9:16 before you batch duplicate edits across a Shorts campaign.
Lock safe zones and end cards into a vertical master knowing the canvas will not letterbox unexpectedly in the app.