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Screen Resolution Converter

Data & Digital

Convert between screen resolution names like 720p, 1080p, 1440p, 4K, and 8K and their exact pixel dimensions, aspect ratio, and total megapixels.

Reviewed by the thecalcu.com team · Last updated July 20, 2026

Pixel Dimensions
1920 × 1080 px
Aspect Ratio
16:9
Total Pixels
2.07 MP

All Resolutions

What is a Screen Res?

A Screen Resolution Converter translates the shorthand names used across streaming platforms, cameras, and displays, 480p, 720p, 1080p, 4K, 8K, into their exact pixel dimensions (width × height), aspect ratio, and total pixel count. These names are marketing shorthand for a specific vertical pixel count, but they don't communicate the full picture: two resolutions with similar names, like 4K UHD and DCI 4K, actually differ in exact width, and knowing the true pixel dimensions matters when configuring cameras, video exports, or display settings.

This is especially useful when working across different standards, consumer television resolutions (UHD, Full HD) follow different conventions from cinema and broadcast standards (DCI). Pair it with the Image Resolution Converter for DPI/PPI pixel-density conversions, or the Bitrate Converter to see how much data streaming at a given resolution actually uses.

Why Use a Screen Resolution Converter?

Video editors, streamers, and developers constantly work with resolution names in configuration files, export settings, and camera specs, but the underlying software often expects exact pixel dimensions rather than a friendly label like "1080p." Getting this wrong means exporting a video at the wrong dimensions or configuring a stream with a mismatched aspect ratio.

Two concrete situations this solves: setting up OBS or a video encoder that requires exact width × height values when you only know you want to stream in "1080p," and verifying whether a downloaded video file's claimed 4K resolution matches the true 3840 × 2160 UHD standard rather than the narrower DCI 4K cinema spec. Both require converting a resolution name into precise numbers instantly.

Who Should Use This Converter?

  • Video editors and YouTubers setting export dimensions correctly for platforms that expect exact pixel values rather than resolution names.
  • Streamers configuring OBS, encoders, or streaming software that requires width × height input fields.
  • Web and app developers building responsive layouts or video players that need to reference standard breakpoint resolutions.
  • Photographers and camera buyers comparing sensor or recording resolution specs across "4K," "6K," and cinema DCI standards.
  • IT and AV professionals matching projector, monitor, or display specs to the correct source resolution, alongside the Data Storage Converter for file size planning.

What Insights Does the Screen Res Converter Give You?

Selecting a resolution name instantly shows its exact pixel dimensions (width × height in pixels), the number every video editor, encoder, and display setting actually needs. The aspect ratio field reduces the width-to-height relationship to its simplest form (like 16:9 or 4:3), telling you whether content will letterbox or fit natively on a given screen. The total pixels figure, shown in megapixels, gives a quick way to compare how much more detail one resolution captures over another, useful when deciding if a jump from 1080p to 4K (4× the pixels) is worth the extra storage and bandwidth cost.

How to use this Screen Res calculator

  1. Open the Resolution Name dropdown and select the resolution you want to look up, such as 4K (UHD).
  2. Read the Pixel Dimensions result, which shows the exact width × height in pixels.
  3. Check the Aspect Ratio box to see the simplified width-to-height ratio, such as 16:9.
  4. Check the Total Pixels box to see the resolution's megapixel count.
  5. Use the copy button next to the pixel dimensions to copy the value for pasting into video or camera settings.
  6. Browse the All Resolutions reference table below and click any entry to switch to it directly for quick comparisons.

Formula & Methodology

Pixel dimensions for each named resolution are fixed industry standards rather than calculated values, 1080p is defined as 1920 × 1080 pixels by convention, not derived from a formula. The aspect ratio is calculated by dividing both the width and height by their greatest common divisor (GCD):

Aspect Ratio = (Width ÷ GCD(Width, Height)) : (Height ÷ GCD(Width, Height))

Worked example: For 1080p (1920 × 1080), the GCD of 1920 and 1080 is 120. Dividing both by 120 gives 1920 ÷ 120 = 16 and 1080 ÷ 120 = 9, producing the familiar 16:9 aspect ratio. Total pixels is simply width × height, for 1080p, 1920 × 1080 = 2,073,600 pixels, or 2.07 megapixels.

Frequently Asked Questions

A screen resolution converter translates the marketing names used for video and display resolutions, like 720p, 1080p, and 4K, into their exact pixel width and height. It also shows the aspect ratio and total pixel count (megapixels), which the name alone doesn't tell you.
1080p (Full HD) measures 1920 × 1080 pixels, totalling about 2.07 megapixels, while 4K (UHD) measures 3840 × 2160 pixels, totalling about 8.3 megapixels, exactly four times as many pixels as 1080p. Both use the same 16:9 aspect ratio, so 4K simply packs four times the detail into the same shape of frame.
1080p contains 1920 × 1080 = 2,073,600 pixels, which is commonly rounded to 2.07 megapixels (MP). This is the resolution behind the 'p' in 1080p, referring to 1,080 lines of vertical (progressive-scan) resolution.
The 'p' stands for progressive scan, meaning every horizontal line of the image is drawn in sequence for each frame, as opposed to interlaced scanning (denoted 'i') which draws alternating lines. The number before the 'p', 720, 1080, and so on, refers to the vertical pixel count (height) of the frame.
Open the Resolution Name dropdown and select the resolution you want to check, such as 1440p (QHD / 2K), and the tool instantly displays the exact width × height in pixels, the aspect ratio, and the total megapixels. You can also click any entry in the reference table below to switch to it directly.
1440p (also called QHD) measures 2560 × 1080 pixels in the true 16:9 consumer sense, 2560 × 1440, and sits between 1080p and 4K, while '2K' is a looser marketing term sometimes used for 1440p and sometimes for DCI 2K cinema resolution (2048 × 1080). 4K UHD (3840 × 2160) has roughly four times the pixel count of 1080p and nearly double that of 1440p.
For most Indian broadband and mobile data plans, 720p (HD) offers a good balance of quality and data usage for video calls, while 1080p (Full HD) is the standard for YouTube and streaming when bandwidth allows. Check the [Bitrate Converter](/bitrate-converter/) to estimate how much data each resolution will consume per hour.
DCI 4K (4096 × 2160) is the digital cinema industry standard used in movie theatre projection, while consumer 4K (UHD, 3840 × 2160) is the resolution used in televisions, monitors, and streaming. DCI 4K is slightly wider, giving it a 1.90:1 aspect ratio compared to UHD's 16:9 (1.78:1).
8K (UHD) measures 7680 × 4320 pixels, totalling roughly 33.2 megapixels, four times the pixel count of 4K and sixteen times that of 1080p. 8K displays and cameras are still niche in the Indian consumer market as of 2026, mostly used in high-end production and select flagship TVs.
Most modern video resolutions, from 480p through 8K, use a 16:9 widescreen aspect ratio, which this converter calculates and displays automatically. DCI cinema resolutions are a slight exception, using a 1.90:1 ratio instead of the consumer 16:9 standard.
No, this converter lists progressive-scan (p) resolutions only, since interlaced formats like 1080i share the same pixel dimensions as their progressive counterpart (1080p) but differ in how frames are drawn on screen, not in pixel count. For pixel-dimension purposes, 1080i and 1080p convert identically.
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1080p to 4kresolution name to pixels4k resolution in pixels720p vs 1080pscreen resolution chartvideo resolution converter