Resize an image to 9:16 aspect ratio.
Drop your photos and download them in the 9:16 aspect ratio. Each photo keeps all its pixels at their own size; padding is added on the short side until the shape is 9:16, so nothing is cropped, enlarged or reduced. It runs in your browser; nothing is uploaded.
Choose the size.
Sizes come from each marketplace's own help pages, summarised in the guides (checked 24 September 2026).
Who asks for 9:16.
Lines from Herofab's platform guides that name the 9:16 aspect ratio, whether as a requirement, a recommendation or one of several accepted shapes. Each row links to the guide and its official source.
| Platform | Rule | What the guide says | Read |
|---|---|---|---|
| Wix | Aspect ratio | 16:9, 3:2, 4:3, 1:1, 3:4, 2:3 or 9:16; 1:1 is the recommended ratio for mobile | 11 October 2026 |
| Google Ads | Vertical | 9:16 — 1,080 × 1,920 pixels recommended, 600 × 1,067 minimum; a Demand Gen format, recommended for YouTube Shorts | 12 October 2026 |
| YouTube | Aspect ratio | 16:9 recommended for video thumbnails, 9:16 for Shorts and 1:1 for podcast playlists | 12 October 2026 |
| Snapchat ads | Aspect ratio | 9:16 is the required image ratio; ads must be full screen and vertically formatted | 12 October 2026 |
| Amazon Ads | Custom image | For asset-based and Brand Store display creative: square 1:1 recommended 1,200 × 1,200 pixels (minimum 600 × 600), wide 1.91:1 recommended 1,200 × 628 pixels (minimum 600 × 314), tall 9:16 minimum 338 × 600 pixels | 12 October 2026 |
| Walmart Connect | Sponsored Brands logo | Minimum image size 300 × 180 pixels, in landscape, square or portrait shapes from 16:9 to 9:16, on a transparent or white background; maximum file size 1 MB, 200 KB recommended | 12 October 2026 |
From a phone photo to 9:16.
Common 12-megapixel phone photo shapes brought to 9:16: the size of the downloaded file and the padding added on each side (↔ left + right, ↕ top + bottom). The photo keeps its own pixels, so the output size follows the photo. The tool above uses the same calculation.
| Phone photo | Output size | Padding |
|---|---|---|
| 4,032 × 3,024 · 4:3 | 4,032 × 7,168 px | ↕ 2,072 + 2,072 px |
| 3,024 × 4,032 · 3:4 | 3,024 × 5,376 px | ↕ 672 + 672 px |
| 4,032 × 2,268 · 16:9 | 4,032 × 7,168 px | ↕ 2,450 + 2,450 px |
| 2,268 × 4,032 · 9:16 | 2,268 × 4,032 px | — |
| 3,024 × 3,024 · 1:1 | 3,024 × 5,376 px | ↕ 1,176 + 1,176 px |
9:16 in numbers.
- Aspect ratio
- 9:16
- Width ÷ height
- 0.563
- Orientation
- Portrait
Other aspect ratios.
9:16, answered.
Which platforms ask for the 9:16 aspect ratio?
Wix, Google Ads, YouTube, Snapchat ads, Amazon Ads, and Walmart Connect. The table on this page gives each rule in full and links to the platform's guide.
What size is the image after resizing to 9:16?
It depends on the photo: its pixels stay and padding is added until the shape is 9:16. A 4,032 × 3,024 px phone photo becomes 4,032 × 7,168 px, with 2,072 px of padding at the top and 2,072 px at the bottom.
Is the photo scaled or cropped when resizing to 9:16?
Neither. The photo keeps every pixel at its original size and the padding colour fills the added area, so the whole product stays in frame and a small photo is not blurred by enlarging.
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