3840 × 2160 Aspect Ratio

Aspect ratio, megapixels and same-ratio sizes for 3840 × 2160 pixels (4K UHD, 2160p).

3840 × 2160 = 16:9 aspect ratio

4K UHD, 2160p. 8.29 megapixels. Used for 4K TVs, monitors and YouTube 4K.

Ratio
:
Size in pixels
×
Change the width or height and the other one follows the ratio. Change both to find the ratio.
16:9aspect ratio
1.78as a decimal
16:9closest standard
2.07megapixels
1920 × 1080
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    3840 × 2160 in detail

    Aspect ratio16:9
    Decimal ratio1.778
    OrientationLandscape
    Total pixels8,294,400
    Megapixels8.29
    Common name4K UHD, 2160p
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    Other 16:9 resolutions

    Width × heightMegapixels
    320 × 1800.06
    480 × 2700.13
    640 × 3600.23
    720 × 4050.29
    960 × 5400.52
    1280 × 7200.92
    1440 × 8101.17
    1600 × 9001.44
    1920 × 10802.07
    2560 × 14403.69

    How to resize to 3840 × 2160

    • If your image is already 16:9, resize it directly: nothing is cropped.
    • If it has another ratio, crop it to 16:9 first, then resize, or add bars (letterbox) to keep everything.
    • For video, keep both numbers even: most encoders require it.
    • Use the social media image resizer to crop and resize in one step.

    Other resolutions

    1920 × 10801280 × 7203840 × 21602560 × 14401080 × 19201080 × 13501080 × 10802560 × 10803440 × 14401366 × 7681440 × 9001024 × 768

    Aspect ratios:

    16:94:321:99:164:53:21:116:10

    Updated October 2026.

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    Frequently asked questions

    What aspect ratio is 3840x2160?

    3840 × 2160 is 16:9. Divide the width by the height: 3840 ÷ 2160 = 1.778.

    Is 3840x2160 4K UHD?

    Yes. 3840 × 2160 pixels is known as 4K UHD, 2160p, used for 4K TVs, monitors and YouTube 4K.

    How many pixels is 3840x2160?

    8,294,400 pixels, or 8.29 megapixels.

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