Aspect Ratio Calculator1080x1080 at a glance
| Simplified ratio | 1:1 |
|---|---|
| Decimal (width ÷ height) | 1:1 |
| Written as x:9 | 1:1 |
| Closest standard ratio | exactly 1:1 (Square (Instagram post)) |
| Megapixels | 1.17 MP (1,166,400 pixels) |
| Pixels compared with 1920 × 1080 | 0.56× |
| Orientation | Square |
| CSS | aspect-ratio: 1 / 1; |
| Padding-top trick | padding-top: 100%; |
What is 1080x1080 used for?
The standard square post: Instagram and Facebook feed posts, square images on LinkedIn and X, carousels, product photos for online shops and profile pictures.
Platform formats that use exactly 1080 × 1080: Instagram posts (Square), YouTube Shorts (Square), Facebook posts (Square), X (Twitter) post images (Square), LinkedIn post images (Square), and Xiaohongshu (RED) covers (Square)
How the ratio is calculated
Divide both sides by their greatest common divisor (GCD). The GCD of 1080 and 1080 is 1080, so 1080 ÷ 1080 = 1 and 1080 ÷ 1080 = 1, which gives 1:1. In CSS that is aspect-ratio: 1 / 1; with the older padding trick the height is 100% of the width.
Same-ratio sizes (1:1)
1080x1080 scaled down and up without changing its shape. Rows marked ≈ are rounded to whole pixels, so they are less than one pixel off.
| Size (px) | Scale | Megapixels |
|---|---|---|
| 270 × 270 | 25% | 0.07 |
| 360 × 360 | 33.3% | 0.13 |
| 540 × 540 | 50% | 0.29 |
| 720 × 720 | 66.7% | 0.52 |
| 810 × 810 | 75% | 0.66 |
| 1080 × 1080 | 100% | 1.17 |
| 1440 × 1440 | 133.3% | 2.07 |
| 1620 × 1620 | 150% | 2.62 |
| 2160 × 2160 | 200% | 4.67 |
| 3240 × 3240 | 300% | 10.5 |
| 4320 × 4320 | 400% | 18.66 |
Nearby common sizes
- 1080 × 1080 1:1 · Square post
- 1080 × 1350 4:5 · Portrait post
- 1024 × 768 4:3 · XGA
- 1440 × 900 8:5 · WXGA+
- 1366 × 768 ≈ 16:9 · WXGA (HD)
Turned on its side, 1080 × 1080 becomes 1080 × 1080 (1:1), with the same number of pixels.
Frequently asked questions
What is the aspect ratio of 1080x1080?
1080 × 1080 has an aspect ratio of 1:1. The greatest common divisor of 1080 and 1080 is 1080; dividing both sides by it gives 1:1. As a decimal that is 1:1.
How many megapixels is 1080x1080?
1080 × 1080 contains 1,166,400 pixels, or 1.17 megapixels. That is 0.56× the pixel count of 1920 × 1080 (Full HD).
Which sizes have the same aspect ratio as 1080x1080?
Exact scaled versions include 270 × 270, 360 × 360, 540 × 540, 720 × 720, 810 × 810, 1440 × 1440, 1620 × 1620, 2160 × 2160, 3240 × 3240, and 4320 × 4320. Any size of the form 1n × 1n has exactly the same shape.
How do I resize an image to 1080x1080 without distortion?
Crop it to 1:1 first, then scale it to 1080 × 1080. For any width W the matching height is W × 1 ÷ 1. The calculator on this page does the arithmetic: type a new width in box 2 and it fills in the height.
Open the full aspect ratio calculator All common resolutions · All platform sizes