Statistics calculator

Calculate mean, median, mode, standard deviation, and variance for any data set.

Data
Calculate

Descriptive statistics

Mean: sum ÷ count. Median: middle value (sort first). Mode: most frequent value.

Spread

Range: max − min. Variance: average squared deviation from mean. Standard deviation: √(variance).

Which to use?

Mean for symmetric data. Median for skewed data (resistant to outliers). Mode for categorical data.

Popular percentage problems
15% of 200 25% of 80 10% of 500 30% of 150 50% of 60 8% of 250
Related calculators
PercentageCombinatoricsRounding