Basic Statistics Calculator
A comprehensive statistics toolkit to calculate mean, median, mode, range, standard deviation, and variance for any data set.
A basic statistics calculator provides a comprehensive dashboard of descriptive statistics for any data set, including mean, median, mode, range, quartiles, variance, and standard deviation in one place.
Examples
Dataset 5-40
Frequently Asked Questions
What stats are included?
Quick Tips
- •Double-check your inputs — a single outlier can dramatically change the mean and standard deviation.
- •Compare the mean and median to quickly assess whether your data is skewed.
- •Use the IQR (Q3 minus Q1) for a robust measure of spread that is less sensitive to outliers than standard deviation.
A basic statistics calculator provides a comprehensive dashboard of descriptive statistics for any data set, including mean, median, mode, range, quartiles, variance, and standard deviation in one place.
How to Use This Calculator
Enter your data set as numbers separated by commas or spaces. Click Calculate (or type) to update the dashboard with mean, median, mode, range, quartiles, standard deviation, variance, and other statistics. All values are computed in one place.
Understanding the Formula
Mean: Σx/n. Range: Max - Min. Interquartile Range: Q3 - Q1.
Examples
Dataset 5-40
For 5, 10, 15, 20, 25, 30, 35, 40: Mean is 22.5, Median is 22.5, Std Dev is 12.1.
Frequently Asked Questions
What stats are included?
This calculator includes Mean, Median, Mode, Min, Max, Range, Sum, Count, Q1, Q3, IQR, Sample Variance, and Sample Standard Deviation.
Assumptions & Limitations
- Assumes exact input values — rounding errors in the inputs will propagate to the result.
- Uses sample formulas (n-1 denominator) for variance and standard deviation by default.
- Results may show floating-point approximations for irrational numbers.