PixelTools

Screen Resolution Calculator

Width times height, converted into the megapixel figure often used to compare displays and cameras.

Width (px)

Height (px)

Total pixels

2,073,600

1920×1080 (1080p) is about 2.1 megapixels; 3840×2160 (4K) is about 8.3 megapixels.

Megapixels: 2.074

What you entered

Width (px): 1920Height (px): 1080

1
Total pixels = width × height
1920 × 1080= 2,073,600 px
2
Convert to megapixels
2,073,600 ÷ 1,000,000= 2.0736 MP

Result

Total pixels: 2,073,600

1920×1080 is 2073600 total pixels, or 2.0736 megapixels.

Pixel count for common screen resolutions

Total pixels is width multiplied by height. Each step up the standard ladder roughly doubles the count.

Name	Resolution	Total pixels	Megapixels	Aspect ratio
HD	1280 x 720	921,600	0.92 MP	16:9
WXGA	1366 x 768	1,049,088	1.05 MP	683:384
Full HD	1920 x 1080	2,073,600	2.07 MP	16:9
QHD	2560 x 1440	3,686,400	3.69 MP	16:9
4K UHD	3840 x 2160	8,294,400	8.29 MP	16:9
8K UHD	7680 x 4320	33,177,600	33.18 MP	16:9

4K carries four times the pixels of Full HD, not twice, because both dimensions double. That is why GPU load scales so steeply with resolution. WXGA reduces to 683:384 rather than a clean 16:9, which is why 1366x768 content is very slightly letterboxed.

Resolution name vs. actual pixel count

Marketing names like '1080p' or '4K' refer to vertical or horizontal pixel count respectively, not the total — this calculator gives the actual total pixel count, which is what determines file size and rendering workload.

More pixels means more GPU work

Rendering workload scales with total pixel count — 4K (3840×2160) has 4x the pixels of 1080p (1920×1080), which is why 4K gaming needs substantially more GPU power than 1080p at the same frame rate.

Frequently asked questions

My monitor is 2560x1440 — how many megapixels is that?

2560 x 1440 = 3,686,400 pixels, or about 3.7 megapixels. That's 1.78x the pixel count of 1080p (2.07 MP), which is why 1440p gaming is noticeably more demanding on your GPU.

What resolution is '4K' exactly?

The consumer '4K' standard is 3840x2160 (8.3 megapixels). True cinema 4K (DCI) is 4096x2160. The name refers to the approximate horizontal pixel count, not vertical like the older 720p/1080p naming convention.

How does screen resolution relate to the aspect ratio calculator?

This calculator gives you total pixel count and megapixels from any resolution. The aspect ratio calculator simplifies that same resolution into its width-to-height ratio (like 16:9). Together they fully describe a display's pixel geometry.