Bit Depth Tonal Steps
Find the number of tonal levels and dynamic range a bit depth provides.
About Bit Depth Tonal Steps
Each extra bit doubles tonal resolution, so 12-bit holds far more gradations than 8-bit and reduces posterization in smooth areas. Higher bit depth matters most when pushing shadows or grading, where low-precision data reveals ugly banding and contouring.
Formula
Bit Depth Tonal Steps
Tonal levels = 2^bit depth; dynamic range ~ bit depth
- bit depth
- Bits per color channel (8, 10, 12, 14, 16)
Worked example
With the default values below, Bit Depth Tonal Steps returns Tonal Levels of 256. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Bit depthone of 8-bit (JPEG), 10-bit, 12-bit RAW, 14-bit RAW, 16-bit
- 8-bit (JPEG)
Results
- Tonal Levels
- 256
- Approx. Dynamic Range
- 8.0 stops
- Gradient Risk
- 8-bit can show visible banding in smooth skies
Step by step
- 1Values used
- 2Bit Depth Tonal Steps
- 3Tonal Levels= 256
- 4Approx. Dynamic Range= 8.0 stops
- 5Gradient Risk= 8-bit can show visible banding in smooth skies
Assumptions and limits
- The result is derived only from the single input listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Bit Depth Tonal Steps calculated?
Tonal levels = 2^bit depth; dynamic range ~ bit depth Each extra bit doubles tonal resolution, so 12-bit holds far more gradations than 8-bit and reduces posterization in smooth areas.
Why does Bit Depth Tonal Steps matter?
Higher bit depth matters most when pushing shadows or grading, where low-precision data reveals ugly banding and contouring.
What values do I need to enter?
This calculator takes 1 input: Bit depth. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.