Log-normal
Calculate Log-normal instantly with the exact formula and a worked example.
Log-normal
μ (mean of the log)
σ (SD of the log)
Median
2.7183
Mean
3.08
Mode
2.12
Standard deviation
1.64
More about: Log-normal
What it calculates
The “Log-normal” calculator computes Median from 2 parameters: μ (mean of the log), σ (sd of the log).
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters μ (mean of the log) = 1, σ (SD of the log) = 0.5 the result is 2.72.
How to use
- Enter μ (mean of the log) and σ (sd of the log) — each field above is adjustable with a slider.
- Median is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Log-normal calculated?
The Log-normal calculator computes Median from μ (mean of the log), σ (sd of the log). Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Log-normal calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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