1080x1350 aspect ratio: 4:5 (1:1.25)
1080 × 1350 reduces to 4:5. The greatest common divisor of 1080 and 1350 is 270, so 1080 ÷ 270 = 4 and 1350 ÷ 270 = 5. That is exactly 4:5.
Published · Updated · Sources last verified
At a glance
4:5
1080 × 1350 is exactly 4:5.
- Decimal
- 1:1.25
- Nearest named ratio
- 4:5, exact
- Orientation
- Portrait
- Pixels
- 1,458,000
- Megapixels
- 1.46
- Greatest common divisor
- 270
How 1080 × 1350 reduces
- 1350 = 1 × 1080 + 270
- 1080 = 4 × 270 + 0
The last divisor, 270, is the greatest common divisor, so 1080 × 1350 reduces to 4:5. The method by hand is on the calculator page.
Crop or pad 1080 × 1350 to common ratios
Whole-pixel downscales
| Divide by | Size | Whole pixels | Nearest whole size |
|---|---|---|---|
| ÷2 | 540 × 675 | yes | same |
| ÷3 | 360 × 450 | yes | same |
| ÷4 | 270 × 337.50 | no | 270 × 338, 0.15% off 4:5 |
| ÷5 | 216 × 270 | yes | same |
| ÷6 | 180 × 225 | yes | same |
| ÷8 | 135 × 168.75 | no | 135 × 169, 0.15% off 4:5 |
| ÷10 | 108 × 135 | yes | same |
Nearest listed ratios
| Size | Reduced ratio | Decimal | Difference from 1080 × 1350 |
|---|---|---|---|
| 1080 × 1350this page's size | 4:5 | 1:1.25 | - |
| 1080 × 1920 | 9:16 | 1:1.778 | 29.7% |
| 1280 × 1024 | 5:4 | 1.25:1 | 56.2% |
| 1440 × 1080 | 4:3 | 1.333:1 | 66.7% |
Facts about 1080 × 1350
- 1080 × 1350 is exactly 4:5: 270 × 4 by 270 × 5.
- 1080 × 1350 divides into whole pixels by 2, 3, 5, 6 and 10, so a one-third size (360 × 450) is still whole pixels.
- Turned on its side, 1080 × 1350 becomes 1350 × 1080 (5:4).
- Cropped to 16:9, 1080 × 1350 keeps 45% (1080 × 608); cropped to 1:1 it keeps 80% (1080 × 1080).
- 1080 × 1350 is 1,458,000 pixels (1.46 MP), 0.7 times the pixel count of 1920 × 1080.
Sourced notes
Meta's ads guide recommends 1440 × 1800 (4:5) for Facebook and Instagram feed image ads. 1080 × 1350 is the same shape at 75% of the size (our arithmetic). LinkedIn also lists 720 × 900 for single image ads.
Source: Meta Ads Guide: Facebook Feed image ads; Meta Ads Guide: Instagram Feed image ads; LinkedIn Help: single image ad specifications. Last verified 2026-10-05.
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Aspect ratio 4:5 (1:1.25). Exact match for 4:5.
Aspect ratio
4:5
1:1.25
Exact match for 4:5.
- Width ÷ height
- 0.8
- Height ÷ width
- 1.25
- Shape
- portrait
Your numbers, worked
gcd(1080, 1350) = 270
1080 ÷ 270 = 4
1350 ÷ 270 = 5
1080 ÷ 1350 = 0.8
Show how the gcd was found
- 1350 = 1 × 1080 + 270
- 1080 = 4 × 270 + 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 × 1350
The largest centred crop at each ratio, best fit first. Crop rather than stretch.
| Ratio | Fit | Crop to | Lost |
|---|---|---|---|
| 4:5 | Exact | 1080 × 1350 | 0% |
| 3:4 | Trim width | 1013 × 1350 | 6.2% |
| 2:3 | Trim width | 900 × 1350 | 16.7% |
| 1:1 | Trim height | 1080 × 1080 | 20% |
| 9:16 | Trim width | 759 × 1350 | 29.7% |
| 5:4 | Trim height | 1080 × 864 | 36% |
| 4:3 | Trim height | 1080 × 810 | 40% |
| 3:2 | Trim height | 1080 × 720 | 46.7% |
| 16:10 | Trim height | 1080 × 675 | 50% |
| 16:9 | Trim height | 1080 × 608 | 55% |
| 1.91:1 | Trim height | 1080 × 565 | 58.1% |
| 2:1 | Trim height | 1080 × 540 | 60% |
| 21:9 | Trim height | 1080 × 463 | 65.7% |
| 32:9 | Trim height | 1080 × 304 | 77.5% |
Solve the missing side
Pick a ratio, then enter the side you know.
Height is 1350. Size 1080 by 1350 pixels.
Size at 4:5
1080 × 1350
Height solved, in pixels.
Your numbers, worked
H = W × 5 ÷ 4 = 1080 × 5 ÷ 4 = 1350
Whole number, so no rounding is needed.
Pixel-exact: a 4:5 size needs the width to be a multiple of 4, and 1080 is 270 × 4.
Questions
What aspect ratio is 1080x1350?
1080 × 1350 is 4:5 (1:1.25). Dividing both sides by their greatest common divisor, 270, gives 4 and 5. That is exactly 4:5.
How do I resize 1080x1350 without distortion?
Keep the ratio at 4:5: new height = new width × 5 ÷ 4. Dividing both sides by 2, 3, 5, 6 or 10 keeps whole pixels, for example 108 × 135 at ÷10.
What is 1080x1350 cropped to 16:9?
A centered 16:9 crop of 1080 × 1350 is 1080 × 608, which keeps 45% of the image. Padding it to 16:9 instead gives a 2400 × 1350 canvas with 1,320 px of bars.
Nearby sizes
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Apart from the sourced notes above, which devices use this size, and marketing names for it, are not covered: we did not verify a primary source for them, so this page sticks to arithmetic.