Aspect Ratio Calculator2560x1440 at a glance
| Simplified ratio | 16:9 |
|---|---|
| Decimal (width ÷ height) | 1.7778:1 |
| Written as x:9 | 16:9 |
| Closest standard ratio | exactly 16:9 (YouTube, HD/4K video) |
| Megapixels | 3.69 MP (3,686,400 pixels) |
| Pixels compared with 1920 × 1080 | 1.78× |
| Orientation | Landscape |
| CSS | aspect-ratio: 16 / 9; |
| Padding-top trick | padding-top: 56.25%; |
What is 2560x1440 used for?
Popular on 27-inch monitors for gaming and office work, where text looks noticeably sharper than at 1080p. YouTube offers it as 1440p, and gamers often choose it as a balance between sharpness and frame rate. It is sometimes loosely called 2K.
Platform formats that use exactly 2560 × 1440: YouTube videos (1440p)
How the ratio is calculated
Divide both sides by their greatest common divisor (GCD). The GCD of 2560 and 1440 is 160, so 2560 ÷ 160 = 16 and 1440 ÷ 160 = 9, which gives 16:9. In CSS that is aspect-ratio: 16 / 9; with the older padding trick the height is 56.25% of the width.
Same-ratio sizes (16:9)
2560x1440 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 |
|---|---|---|
| 640 × 360 | 25% | 0.23 |
| ≈ 853 × 480 | 33.3% | 0.41 |
| 1280 × 720 | 50% | 0.92 |
| ≈ 1707 × 960 | 66.7% | 1.64 |
| 1920 × 1080 | 75% | 2.07 |
| 2560 × 1440 | 100% | 3.69 |
| ≈ 3413 × 1920 | 133.3% | 6.55 |
| 3840 × 2160 | 150% | 8.29 |
| 5120 × 2880 | 200% | 14.75 |
| 7680 × 4320 | 300% | 33.18 |
Other standard 16:9 resolutions
- 1280 × 720 HD (720p)
- 1920 × 1080 Full HD (1080p)
- 3840 × 2160 4K UHD (2160p)
- 7680 × 4320 8K UHD (4320p)
- 1536 × 864 HD+ (1080p at 125%)
- 1600 × 900 HD+ (900p)
Nearby common sizes
- 2048 × 1536 4:3 · QXGA (iPad Retina)
- 2560 × 1080 ≈ 21:9 · UW-FHD (ultrawide 1080p)
- 3440 × 1440 ≈ 21:9 · UWQHD (ultrawide 1440p)
- 2732 × 2048 ≈ 4:3 · 12.9-inch iPad Pro
Frequently asked questions
What is the aspect ratio of 2560x1440?
2560 × 1440 has an aspect ratio of 16:9. The greatest common divisor of 2560 and 1440 is 160; dividing both sides by it gives 16:9. As a decimal that is 1.7778:1.
How many megapixels is 2560x1440?
2560 × 1440 contains 3,686,400 pixels, or 3.69 megapixels. That is 1.78× the pixel count of 1920 × 1080 (Full HD).
Which sizes have the same aspect ratio as 2560x1440?
Exact scaled versions include 640 × 360, 1280 × 720, 1920 × 1080, 3840 × 2160, 5120 × 2880, and 7680 × 4320. Standard resolutions with the same 16:9 ratio are 1280 × 720, 1920 × 1080, 3840 × 2160, 7680 × 4320, 1536 × 864, and 1600 × 900. Any size of the form 16n × 9n has exactly the same shape.
How do I resize an image to 2560x1440 without distortion?
Crop it to 16:9 first, then scale it to 2560 × 1440. For any width W the matching height is W × 9 ÷ 16. The calculator on this page does the arithmetic: type a new width in box 2 and it fills in the height.
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