Standard Deviation Calculator
Calculate mean, variance, and standard deviation from a set of numbers. Shows both population and sample statistics.
About the Standard Deviation Calculator
Calculate mean, variance, and standard deviation from a set of numbers. Shows both population and sample statistics.
Standard Deviation Calculator is a free online calculator on QuickFnd. Calculate mean, variance, and standard deviation from a set of numbers. Shows both population and sample statistics. Get instant results in your browser without any signup or download.
- Type
- Calculator
- Runs in
- Your browser — no account, no install
- Price
- Free
- Results
- Instant, with plain-English interpretation
Standard Deviation Calculator
Frequently asked questions
Population uses N in the denominator, sample uses N-1 (Bessel's correction).
Enter numbers separated by commas, e.g., 10, 20, 30, 40, 50.
Explore This Topic
Related Calculators
Convert numbers to and from scientific notation. Also shows engineering notation. Free scientific notation calculator.
Calculate CGPA from individual semester GPAs — supports 4.0, 5.0, and 10.0 grading scales used across Indian universities.
Calculate LTV — total revenue expected from a customer over their lifetime.
Calculate density from mass and volume. Compare with water density.
Calculate annual dividend income and dividend yield from your shares.
Find out what a sum of money from any past year is worth in today's terms. Uses historical CPI data to calculate real purchasing power.