9:16 aspect ratio (1:1.778): resolutions and sizes
9:16 means 9 units wide for every 16 tall, so width ÷ height = 0.563 and the height is 177.8% of the width. Exact 9:16 sizes are whole multiples of 9 × 16, such as 1080 × 1920 (120 × 9 by 120 × 16).
Published · Updated · Sources last verified
At a glance
9:16
9:16 is 1:1.778.
- Decimal
- 1:1.778
- Height as share of width
- 177.8%
- Exact sizes
- width a multiple of 9, height the same multiple of 16
9:16 heights at common widths
| Width | Height at 9:16 | Whole pixels | Size page |
|---|---|---|---|
| 360 | 640 | yes | - |
| 480 | 853.33 (nearest whole: 480 × 853) | no | - |
| 540 | 960 | yes | - |
| 720 | 1280 | yes | - |
| 1080example size | 1920 | yes | 1080x1920 |
| 1440 | 2560 | yes | - |
| 2160 | 3840 | yes | - |
Crop common sizes to 9:16
| Size | Centered 9:16 crop | Share kept | Exact |
|---|---|---|---|
| 1920 × 1080 | 608 × 1080 | 31.7% | no |
| 3440 × 1440 | 810 × 1440 | 23.5% | yes |
| 2560 × 1440 | 810 × 1440 | 31.6% | yes |
| 1280 × 720 | 405 × 720 | 31.6% | yes |
| 3840 × 2160 | 1215 × 2160 | 31.6% | yes |
| 1080 × 1350 | 759 × 1350 | 70.3% | no |
| 1920 × 1200 | 675 × 1200 | 35.2% | yes |
| 1440 × 1080 | 608 × 1080 | 42.2% | no |
9:16 against other ratios
| Other ratio | Decimal | Share kept or filled | Cropping 9:16 cuts | Padding adds bars |
|---|---|---|---|---|
| 16:9 | 1.778:1 | 31.6% | top and bottom | left and right |
| 4:5 | 1:1.25 | 70.3% | top and bottom | left and right |
| 1:1 | 1:1 | 56.3% | top and bottom | left and right |
| 4:3 | 1.333:1 | 42.2% | top and bottom | left and right |
| 1.91:1 | 1.91:1 | 29.5% | top and bottom | left and right |
Pages for exact 9:16 sizes
Facts about 9:16
- The smallest whole-pixel 9:16 size is 9 × 16; 6 of the 7 common widths in the table give a whole-pixel height.
- No whole-pixel 9:16 size is 480 px wide: the height would be 853.33 px.
- Turned on its side, a 9:16 frame becomes 16:9: 1080 × 1920 becomes 1920 × 1080.
- Cropping 9:16 to 1.91:1 keeps the least of the common ratios, 29.5%; cropping to 4:5 keeps the most, 70.3%.
- Of the listed sizes in the crop table, 1080 × 1350 keeps the most when cropped to 9:16 (70.3%) and 3440 × 1440 the least (23.5%).
Sourced notes
Meta's ads guide recommends 1440 × 2560 for Instagram Stories and Reels image ads. 1080 × 1920 is the same 9:16 shape at 75% of the size (our arithmetic).
Source: Meta Ads Guide: Instagram Stories image ads; Meta Ads Guide: Instagram Reels image ads. Last verified 2026-10-05.
YouTube Shorts thumbnails are 2160 × 3840, the 9:16 version of the 3840 × 2160 video thumbnail.
Source: YouTube Help: video thumbnail requirements. Last verified 2026-10-05.
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Aspect ratio 9:16 (1:1.778). Exact match for 9:16.
Aspect ratio
9:16
1:1.778
Exact match for 9:16.
- Width ÷ height
- 0.5625
- Height ÷ width
- 1.7778
- Shape
- portrait
Your numbers, worked
gcd(1080, 1920) = 120
1080 ÷ 120 = 9
1920 ÷ 120 = 16
1080 ÷ 1920 = 0.5625
Show how the gcd was found
- 1920 = 1 × 1080 + 840
- 1080 = 1 × 840 + 240
- 840 = 3 × 240 + 120
- 240 = 2 × 120 + 0
Divide the larger side by the smaller, then divide the last divisor by the remainder until the remainder is 0. The last divisor is the gcd.
What each ratio would cut from 1080 × 1920
The largest centred crop at each ratio, best fit first. Crop rather than stretch.
| Ratio | Fit | Crop to | Lost |
|---|---|---|---|
| 9:16 | Exact | 1080 × 1920 | 0% |
| 2:3 | Trim height | 1080 × 1620 | 15.6% |
| 3:4 | Trim height | 1080 × 1440 | 25% |
| 4:5 | Trim height | 1080 × 1350 | 29.7% |
| 1:1 | Trim height | 1080 × 1080 | 43.8% |
| 5:4 | Trim height | 1080 × 864 | 55% |
| 4:3 | Trim height | 1080 × 810 | 57.8% |
| 3:2 | Trim height | 1080 × 720 | 62.5% |
| 16:10 | Trim height | 1080 × 675 | 64.8% |
| 16:9 | Trim height | 1080 × 608 | 68.3% |
| 1.91:1 | Trim height | 1080 × 565 | 70.6% |
| 2:1 | Trim height | 1080 × 540 | 71.9% |
| 21:9 | Trim height | 1080 × 463 | 75.9% |
| 32:9 | Trim height | 1080 × 304 | 84.2% |
Solve the missing side
Pick a ratio, then enter the side you know.
Height is 1920. Size 1080 by 1920 pixels.
Size at 9:16
1080 × 1920
Height solved, in pixels.
Your numbers, worked
H = W × 16 ÷ 9 = 1080 × 16 ÷ 9 = 1920
Whole number, so no rounding is needed.
Pixel-exact: a 9:16 size needs the width to be a multiple of 9, and 1080 is 120 × 9.
Questions
What resolutions are 9:16?
360 × 640, 720 × 1280, 1080 × 1920, 1440 × 2560 and 2160 × 3840 are exactly 9:16. Any size whose width is a multiple of 9 and whose height is the same multiple of 16 is exact.
How do I work out a 9:16 height from a width?
Multiply the width by 16 and divide by 9: 1080 × 16 ÷ 9 = 1920. The other way, width = height × 9 ÷ 16. At 480 px wide the height is 853.33, so no exact whole-pixel 9:16 size is that wide.
How much of a 9:16 image does a 1.91:1 crop keep?
29.5%. The share kept is the smaller decimal divided by the larger: 0.563 ÷ 1.91. Padding a 9:16 image to 1.91:1 instead fills the same share of the canvas.
Nearby sizes
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Apart from the sourced notes above, which devices use this ratio, and marketing names for it, are not covered: we did not verify a primary source for them, so this page sticks to arithmetic.