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Free Statistics Calculator
Calculate comprehensive statistics including mean, standard deviation, variance, and more.
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CalculateQuick Answer
Statistics measures: Mean (average), Standard Deviation (spread), Variance (SD²). 68% of normal data within 1 SD of mean.
Key Facts about Statistics Calculator:
- Mean = sum/count
- Variance = average squared deviation
- Standard deviation = √variance
- 68% within 1 SD (normal)
- Sample SD uses n-1
Why Use Our Statistics Calculator?
Statistics tools:
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Full Statistics
All descriptive stats.
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Graphs
Visual distributions.
🔢
Sample/Population
Both formulas.
📐
Percentiles
Quartiles and more.
⚡
Instant
Quick results.
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Private
Data stays secure.
How to Statistics Calculator in 3 Easy Steps
Calculate stats:
1
Enter Data
Your dataset.
2
Calculate
Process all stats.
3
View Results
See all measures.
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Statistics
Complete data analysis
Frequently Asked Questions
Everything you need to know about our statistics calculator
What is standard deviation?
Measure of spread from the mean.
Measures how spread out data is from the mean. Low SD = clustered, high SD = spread out.
Still have questions? Try the tool yourself!
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