What does bit depth mean in video?

Bit depth defines how many distinct values each color channel can represent. An 8-bit channel holds 256 values (0–255); a 10-bit channel holds 1,024. More bits mean smoother gradients and more headroom for grading before banding appears.

Why does 10-bit look better than 8-bit?

10-bit provides 64× more total colors than 8-bit (1.07 billion vs 16.7 million). The extra values reduce visible banding in skies and smooth color transitions, and give colorists more range to push exposure and saturation without clipping.

How is the data rate calculated?

Data rate = bits per pixel × pixel count × frame rate. Bits per pixel depends on bit depth and the color sampling scheme (e.g., 4:4:4 RGB keeps full chroma; 4:2:0 halves horizontal and vertical chroma resolution, cutting bits per pixel nearly in half).

Does bit depth affect file size of compressed video?

Compressed codecs (H.264, HEVC, ProRes) reduce the raw data rate significantly, but higher bit depth still produces larger files — codecs need more bits to faithfully encode the extra color precision. The calculator shows the uncompressed baseline; real file sizes will be much smaller.

What is 4:2:2 vs 4:2:0 chroma subsampling?

4:4:4 stores full color at every pixel. 4:2:2 halves horizontal chroma resolution (common in broadcast and ProRes). 4:2:0 halves both horizontal and vertical chroma (used in H.264/HEVC consumer delivery). Lower subsampling reduces data rate but can limit chroma keying quality.

Color Bit Depth Calculator

Name: Color Bit Depth Calculator
Availability: InStock
Author: Nham Vu

Calculate possible color values, uncompressed frame size, and data rate for any bit depth, resolution, and frame rate.

Inputs

Bit Depth

Custom: bits/channel

Resolution

Frame Rate (fps)

Color Sampling

Total Unique Colors

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Bits per Pixel (bpp)

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Uncompressed Frame Size

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Raw Data Rate

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Calculation Breakdown

Enter values and click Calculate

Bit Depth Comparison (same resolution & fps)

Bit Depth	Colors/Channel	Total Colors	Data Rate
Click Calculate to populate

Summary

Calculate possible color values, uncompressed frame size, and data rate for any bit depth, resolution, and frame rate.

How it works

Select or enter the color bit depth (8, 10, 12, 16-bit or custom).
Choose a resolution preset or enter custom width and height in pixels.
Set the frame rate (e.g. 24, 30, 60 fps).
Select the channel layout (RGB/RGBA or YCbCr 4:2:2 / 4:2:0).
Read the results: total colors, bits per pixel, uncompressed frame size, and raw data rate.

Use cases

Compare 8-bit vs 10-bit color depth when choosing a camera or codec.
Estimate raw storage requirements for an uncompressed video shoot.
Understand how bit depth affects color banding and dynamic range.
Plan bandwidth for live uncompressed video over SDI or fiber.
Evaluate whether 12-bit RAW is necessary for a given deliverable.
Calculate the data rate difference between 4:2:0 and 4:4:4 color sampling.

Frequently Asked Questions

Last updated: 2026-07-01 · Reviewed by Nham Vu