📹 Bits Per Pixel Calculator
Calculate video bits per pixel from bitrate, resolution, FPS, chroma subsampling, bit depth, codec efficiency, motion level, quality band, and compression density.
Measured delivered BPP before codec and motion normalization.
Quality-equivalent BPP after codec, motion, scene detail, and GOP factors.
How far current bitrate is from the selected quality target.
Chroma and bit depth before codec compression.
| Delivered BPP | Band | Best fit | Caution |
|---|---|---|---|
| Under 0.030 | Starved | Static talk, small mobile | Fast motion blocks easily |
| 0.030-0.045 | Compact | Low motion, AV1, 720p | Fine texture may smear |
| 0.045-0.065 | Balanced | Most live gaming streams | Hard caps can still show artifacts |
| 0.065-0.090 | Clean | High motion or 1440p | Needs more upload or platform cap |
| 0.090+ | Archive | Recording and creator review | Usually high for live streaming |
Delivered BPP = video bits per second divided by pixels per second.
| Codec or encoder | Need | Quality credit | Use case |
|---|---|---|---|
| x264 fast H.264 | 1.08x | 0.93x | Compatible CPU encoding |
| x264 slow H.264 | 0.94x | 1.06x | Higher quality per bit, CPU heavy |
| NVENC H.264 | 1.00x | 1.00x | Common live game streaming |
| HEVC / H.265 | 0.75x | 1.33x | Recording, supported live ingest |
| AV1 hardware | 0.62x | 1.61x | Modern streaming and VOD efficiency |
Need below 1.00 means the codec can target similar quality at lower bitrate.
| Format | 8-bit | 10-bit | Encoding note |
|---|---|---|---|
| RGB / 4:4:4 | 24 raw bpp | 30 raw bpp | Full color detail, strong for text capture |
| YCbCr 4:4:4 | 24 raw bpp | 30 raw bpp | Full luma and chroma samples |
| YCbCr 4:2:2 | 16 raw bpp | 20 raw bpp | Broadcast and capture compromise |
| YCbCr 4:2:0 | 12 raw bpp | 15 raw bpp | Common streaming and delivery format |
Raw bpp is not the same as delivered BPP after codec compression.
| Content | Motion | Detail | BPP behavior |
|---|---|---|---|
| Talk, webcam, static UI | 0.75x | 0.88-1.00x | Can look fine at compact BPP |
| RPG, platformer, strategy | 0.90x | 1.00x | Balanced targets usually work |
| Shooter, racing, sports | 1.10x | 1.00-1.14x | Needs more density for motion clarity |
| Foliage, particles, grain | 1.30x | 1.14-1.25x | Raise bitrate or lower resolution |
The calculator uses these factors to normalize measured BPP into an effective quality score.
| Output | FPS | Typical H.264 BPP | AV1/HEVC equivalent | Practical read |
|---|---|---|---|---|
| 720p | 30-60 | 0.045-0.070 | 0.028-0.050 | Good for modest upload or mobile viewing |
| 936p | 60 | 0.052-0.075 | 0.033-0.055 | Strong compromise for fast live games |
| 1080p | 30-60 | 0.045-0.070 | 0.030-0.050 | Mainstream stream and capture target |
| 1440p | 60 | 0.055-0.085 | 0.035-0.060 | Needs higher cap or efficient codec |
| 4K | 30-60 | 0.060-0.100 | 0.040-0.070 | Best with HEVC, AV1, or recording bitrate |
Webhook row marker: index 970, gid 1450490472. Use platform bitrate caps separately from this quality-density model.
Did you know? Even if your bitrate is high, your stream might still appear blocky. While troubleshooting, you think everythings set up correctly, but chat viewers keep complaining about quality.
Bitrate isn’t a clear-cut metric because it doesn’t take into consideration differences in resolution. For example, a 1080p video have around four times fewer pixels than a 4K video. In order to get the same size on-screen, it takes more data to fill 4K screen. That’s why bits per pixel is a better way to compare video quality between different frame rates and resolutions.
Why Bits Per Pixel Are Better Than Bitrate
Use the calculator above to run that number for yourself. The result is a fair view of resolution so you can better understand how dense your encode is. Bits per pixel is like your budget for each dot on the screen. You’re streaming at sixty frames per second and ten million pixels, which adds up to six hundred million pixels of data required per second.
At 6 Mbps, a 1080p stream sound pretty beefy, but spread out over all those pixel, that’s not much money per pixel. That’s why you’ll see streams of 3 Mbps in 720p that appear better than 20 Mbps in 4K. The lower-resolution video gets more budget per pixel.
These are tiny details but they matter more then any other encoder setting. It takes into account details beyond simple arithmetic. A pixel doesn’t need the same amount of data as any other pixel. There’s also issue of chroma subsampling. By default most platforms is 4:2:0 chroma, meaning they only send half the color information vs full 4:4:4 RGB. That reduces the actualy data needed and makes it easier for codec to compress without sacrificing detail. This loss hurts if you are capturing desktop gameplay with text or UI elements. With the calculator, you can turn this on/off and observe the impact on required bitrate to get full color fidelity.
Quality is also heavily dependent on motion. If you’re shooting a talking head, the background won’t change much between bits. What does move gets sent to the encoder. On the other hand, if you’re doing fast moving shooter material with lots of camera shake and particles, each frame will be different. In this scenario, the encoder can’t guess at the next picture and has to describe nearly every single pixel from scratch. It needs higher density. Your actual quality band adjust based off motion level, which you can see in the reference table on the page.
The other thing that matters is codec efficiency. Older codecs like H.264 aren’t as efficient as newer codecs like HEVC and AV1. That means newer codecs like HEVC and AV1 can squeeze more quality out of same amount of data. If you are using an older encoder, you need more bits per pixel to achieve the same visual result. This is taken into account by the calculator. It will tell you how many bits per pixel you have now. It will also show if it takes your setup into account.
Forget the guesswork when it comes to bitrate caps. Use this metric to check quality of your encoding. Anything below 0.030 bits per pixel won’t be improved by bitrate headroom; you’ll either need to drop down in either frame rate or resolution. You should of checked this earlier. Feed the pixels some data.
As soon as you realize each additional megapixel demands more budget, you’ll stop obsessing over abstract bitrate figures. Instead, you’ll begin optimizing based on real-world visual clarity.
