Resolution Calculator
Scale resolutions proportionally and compare pixel counts between different displays.
Resolution Calculator
Scale resolutions and compare pixel counts
×
New Resolution
2880 × 1620
150.0% scale (1.50x)
Original
2.07 MP
Scaled
4.67 MP
Pixel Change
+125.0% (2.25x pixels)
Resolution Visualizer
2880 × 1620
Scaled (1.5x)
1920 × 1080
Original
Original
Scaled (1.50x)
Pixel Count
2.07 MP
4.67 MP
How to Scale and Compare Resolutions
1
Enter Resolution
Input your source resolution or select a preset like 1080p, 4K, or 8K.
2
Choose Scale Method
Scale by percentage, target width, or target height with aspect ratio lock.
3
View Results
Get new dimensions instantly with megapixel counts and pixel comparisons.
4
Compare Resolutions
See how different resolutions compare in total pixel count and quality.
Common Resolution Reference
| Name | Resolution | Aspect Ratio | Megapixels | Common Use |
|---|---|---|---|---|
| HD (720p) | 1280 × 720 | 16:9 | 0.92 MP | Web video, older TVs |
| Full HD (1080p) | 1920 × 1080 | 16:9 | 2.07 MP | Standard monitors, TV |
| QHD (1440p) | 2560 × 1440 | 16:9 | 3.69 MP | Gaming monitors |
| 4K UHD | 3840 × 2160 | 16:9 | 8.29 MP | 4K TVs, Pro monitors |
| 5K | 5120 × 2880 | 16:9 | 14.75 MP | iMac, Studio Display |
| 8K UHD | 7680 × 4320 | 16:9 | 33.18 MP | 8K TVs, Pro video |
| Ultrawide QHD | 3440 × 1440 | 21:9 | 4.95 MP | Ultrawide monitors |
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Frequently Asked Questions
How do I scale a resolution while keeping the aspect ratio?
Enter your original resolution, select a scale method (percentage, target width, or target height), and ensure 'Lock aspect ratio' is checked. The calculator will automatically calculate the other dimension to maintain proportions.
What is the difference between 1080p and 4K resolution?
1080p (1920×1080) has about 2.07 million pixels, while 4K (3840×2160) has about 8.29 million pixels. 4K has exactly 4 times the pixel count of 1080p, with double the width and height.
How many megapixels is 4K resolution?
4K UHD resolution (3840×2160) equals approximately 8.29 megapixels (3840 × 2160 = 8,294,400 pixels).
What resolution should I use for YouTube videos?
For YouTube, 1080p (1920×1080) is the standard HD quality. 4K (3840×2160) is recommended for higher quality content. Both use a 16:9 aspect ratio.