Aspect Ratio Calculator1366x768 at a glance
| Simplified ratio | 683:384 |
|---|---|
| Decimal (width ÷ height) | 1.7786:1 |
| Written as x:9 | 16.01:9 |
| Closest standard ratio | 16:9 (YouTube, HD/4K video), 0.05% off |
| Megapixels | 1.05 MP (1,049,088 pixels) |
| Pixels compared with 1920 × 1080 | 0.51× |
| Orientation | Landscape |
| CSS | aspect-ratio: 683 / 384; |
| Padding-top trick | padding-top: 56.2225%; |
What is 1366x768 used for?
For years the most common resolution on budget laptops, often 14 and 15.6 inch, and on small TVs. It is marketed as 16:9 even though the exact ratio is 683:384.
How the ratio is calculated
Divide both sides by their greatest common divisor (GCD). The GCD of 1366 and 768 is 2, so 1366 ÷ 2 = 683 and 768 ÷ 2 = 384, which gives 683:384. In CSS that is aspect-ratio: 683 / 384; with the older padding trick the height is 56.2225% of the width.
683:384 is not a round ratio, but it is only 0.05% away from 16:9, which is why 1366 × 768 is sold and described as 16:9. An exact 16:9 image 1366 px wide would be 768.38 px tall instead of 768.
Same-ratio sizes (683:384)
1366x768 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 |
|---|---|---|
| ≈ 342 × 192 | 25% | 0.07 |
| ≈ 455 × 256 | 33.3% | 0.12 |
| 683 × 384 | 50% | 0.26 |
| ≈ 911 × 512 | 66.7% | 0.47 |
| ≈ 1025 × 576 | 75% | 0.59 |
| 1366 × 768 | 100% | 1.05 |
| ≈ 1821 × 1024 | 133.3% | 1.86 |
| 2049 × 1152 | 150% | 2.36 |
| 2732 × 1536 | 200% | 4.2 |
| 4098 × 2304 | 300% | 9.44 |
| 5464 × 3072 | 400% | 16.79 |
Nearby common sizes
- 1280 × 720 16:9 · HD (720p)
- 1536 × 864 16:9 · HD+ (1080p at 125%)
- 1600 × 900 16:9 · HD+ (900p)
- 1440 × 900 8:5 · WXGA+
Frequently asked questions
What is the aspect ratio of 1366x768?
1366 × 768 has an aspect ratio of 683:384. The greatest common divisor of 1366 and 768 is 2; dividing both sides by it gives 683:384. As a decimal that is 1.7786:1, 0.05% away from the standard 16:9 ratio.
How many megapixels is 1366x768?
1366 × 768 contains 1,049,088 pixels, or 1.05 megapixels. That is 0.51× the pixel count of 1920 × 1080 (Full HD).
Which sizes have the same aspect ratio as 1366x768?
Exact scaled versions include 683 × 384, 2049 × 1152, 2732 × 1536, 4098 × 2304, and 5464 × 3072. Any size of the form 683n × 384n has exactly the same shape.
How do I resize an image to 1366x768 without distortion?
Crop it to 683:384 first, then scale it to 1366 × 768. For any width W the matching height is W × 384 ÷ 683. 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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