Log-Normal Distribution Calculator
Calculate probabilities and properties of the log-normal distribution
About Log-Normal Distribution
A random variable X is log-normally distributed if ln(X) follows a normal distribution. The distribution is always positive and right-skewed.
Key Properties:
- Mean = e^(μ + σ²/2)
- Median = e^μ
- Mode = e^(μ - σ²)
Applications: Stock prices, income distribution, particle sizes, bacterial colony sizes
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.