QHD Resolution Reference
QHD (2560x1440) resolution specs, pixel density calculator, aspect ratio breakdown, and side-by-side comparison with FHD, 4K, and other common display standards.
QHD resolution is 2560x1440 pixels: 2,560 wide by 1,440 tall, 3,686,400 pixels (about 3.69 megapixels) at a 16:9 aspect ratio.
Use the QHD Resolution Reference
Pixel Density (PPI) Calculator
Enter your screen diagonal to see the PPI for QHD and nearby resolutions.
| Resolution | Pixels | PPI |
|---|
Resolution Comparison
| Name | Width | Height | Megapixels | vs QHD | Ratio |
|---|---|---|---|---|---|
| HD | 1,280 | 720 | 0.92 MP | -75% | 16:9 |
| Full HD | 1,920 | 1,080 | 2.07 MP | -44% | 16:9 |
| QHD (this) | 2,560 | 1,440 | 3.69 MP | — | 16:9 |
| QHD+ | 3,200 | 1,800 | 5.76 MP | +56% | 16:9 |
| 4K UHD | 3,840 | 2,160 | 8.29 MP | +125% | 16:9 |
| UWQHD | 3,440 | 1,440 | 4.95 MP | +34% | 21:9 |
| 5K | 5,120 | 2,880 | 14.75 MP | +300% | 16:9 |
Visual Scale — Relative Pixel Area
Each rectangle below is scaled proportionally to its total pixel count relative to 5K, the largest resolution shown.
QHD Quick Facts
- Total pixels:
- 3,686,400
- Pixel ratio vs 720p HD:
- 4x (Quad HD)
- Pixel ratio vs 1080p:
- 1.78x
- Pixel ratio vs 4K:
- 0.44x (2.25x fewer)
- Horizontal res.:
- 2560 px
- Vertical res.:
- 1440 px
- Standard refresh rates:
- 60 Hz, 144 Hz, 165 Hz, 240 Hz
- Common panel sizes:
- 24", 27", 32" monitors
- Typical use:
- Gaming, design, productivity
- VRAM recommendation:
- 6 GB minimum for 1440p gaming
Quick answer
QHD resolution is 2560x1440 pixels: 2,560 wide by 1,440 tall, 3,686,400 pixels (about 3.69 megapixels) at a 16:9 aspect ratio. Also called 1440p or WQHD, it has four times the pixels of 720p and 1.78 times 1080p; 4K UHD has 2.25 times more.
Examples
| QHD screen size | Pixel density |
|---|---|
| 24-inch monitor | 122.4 PPI |
| 27-inch monitor | 108.8 PPI |
| 32-inch monitor | 91.8 PPI |
Enter your screen size to compare QHD PPI with 1080p, 4K and 5K.
Summary
QHD (Quad HD) refers to the 2560x1440 pixel resolution, exactly four times the area of 720p HD. It is widely used in gaming monitors, professional displays, and high-end laptops, offering a sharp image and a sensible performance-to-quality trade-off between Full HD and 4K. This tool lets you calculate pixel density (PPI) for any screen size, and compare QHD to other common resolutions at a glance.
How it works
- The reference table lists the exact pixel count and megapixels of QHD (2560x1440) and related standards.
- Enter your screen diagonal (in inches) to calculate the PPI (pixels per inch) for each resolution.
- The aspect ratio section breaks down the 16:9 ratio shared by QHD, FHD, and 4K displays.
- The comparison table ranks resolutions by total pixels so you can see the step-up at each tier.
- All calculations run entirely in your browser — no data is sent anywhere.
Use cases
- Verify whether a monitor listed as QHD actually matches the 2560x1440 spec.
- Calculate PPI before buying a new display to judge sharpness at typical viewing distance.
- Compare QHD vs. 4K to decide whether the performance cost of 4K is worth it for your GPU.
- Understand the pixel budget when targeting QHD in game or application development.
- Explain to clients the visual difference between 1080p and 1440p content delivery.
- Quick reference during hardware procurement or IT asset planning.