PhotoCalcs
Video Resolution Calculator — Compare Resolutions
Compare video resolutions, pixel counts and relative sizes.
How We Calculate This
Pixel Count
Total pixels = width x height
Resolution Comparison
Ratio vs 1080p = total pixels / (1920 x 1080)
Frequently Asked Questions
4K UHD (3840x2160) has 8,294,400 pixels (8.3 megapixels). DCI 4K (4096x2160) has 8,847,360 pixels. 4K has exactly 4x the pixels of 1080p (1920x1080 = 2.07MP). This means 4K can be downscaled to 1080p with no interpolation.
8K (7680x4320) has 33.2 megapixels — 16x 1080p and 4x 4K. For typical viewing distances, the difference between 4K and 8K is invisible on screens under 75 inches. 8K is useful for future-proofing, heavy cropping in post, and very large displays.
UHD 4K (3840x2160) is exactly 2x Full HD in each dimension and uses 16:9 aspect ratio. DCI 4K (4096x2160) is the cinema standard with a slightly wider 1.9:1 aspect. Most consumer content is UHD; most cinema cameras offer both.
Yes. Shooting 4K for 1080p delivery (downsampling) improves sharpness, reduces noise, and allows 2x digital punch-in without quality loss. Many professionals shoot 4K or higher even when delivering in 1080p for these benefits.
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Last updated: February 2026
All calculations are estimates based on standard optical and photographic formulas. Results may vary with specific equipment.