Coefficient of Variation Calculator

Calculate the coefficient of variation (CV) to measure relative variability in your data.

Calculator

Calculate Coefficient of Variation

Concept

What is Coefficient of Variation?

The coefficient of variation (CV) is a standardized measure of dispersion of a probability distribution or frequency distribution. It is often expressed as a percentage and is defined as the ratio of the standard deviation to the mean.

Key Points:
  • Measures relative variability
  • Independent of units
  • Useful for comparing different datasets
  • Expressed as a percentage
Guide

CV Interpretation

CV < 15%

Low variability

15% ≤ CV < 30%

Moderate variability

CV ≥ 30%

High variability

Formula

Calculation Formula

CV = (σ / μ) × 100%

where:
σ = standard deviation
μ = mean

Examples

Common Examples

Example 1 Low Variability

Data: [98, 99, 100, 101, 102]
CV = 1.58% (low variability)

Example 2 Moderate Variability

Data: [80, 85, 90, 95, 100]
CV = 9.13% (moderate variability)

Example 3 High Variability

Data: [50, 75, 100, 125, 150]
CV = 35.36% (high variability)

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