Current sizes, ratios, durations, file limits, and text limits for YouTube placements. Specs change several times a year; confirm against the platform's documentation before production.
| Element | Specification |
|---|---|
| Skippable in-stream | 16:9 or 9:16; no maximum length (under 3 minutes recommended); skip after 5 seconds |
| Non-skippable in-stream | 15 seconds (20 in some markets), 16:9 |
| Bumper | 6 seconds, 16:9 |
| Shorts | 9:16, up to 60 seconds; 1080 x 1920 |
| In-feed | Thumbnail 640 x 360 or 1280 x 720; headline 100 characters |
| File | MP4 or MOV recommended, H.264, up to 256 GB; 1920 x 1080 minimum recommended |
Build client-approval mockups at these dimensions with the free ad mockup generator. Terms are defined in the creative section of the glossary.
Cite this page:
Agency Echelon. "YouTube ad specs." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/specs/youtube/