Two to 200 finite numeric observations with an explicit population/sample choice.
Variance Calculator
Enter your values below to get the result first, then scroll for the full explanation and guidance.
Population variance
48 observations
Population variance: 4 (8 observations)
Squared deviations from the mean are divided by n.
Variance result
Squared deviations from the mean are divided by n.
Result snapshot
A quick visual read of the values behind this result.
Mean5
Standard deviation2
Recommended next checks
- →Select sample variance only when the values are a sample used to estimate a wider population.
- Mean
- 5
- Standard deviation
- 2
Try different values to compare results.
Calculate population or sample variance for a bounded numeric dataset.
Population variance
48 observations
Population variance: 4 (8 observations)
Squared deviations from the mean are divided by n.
Variance result
Squared deviations from the mean are divided by n.
Result snapshot
A quick visual read of the values behind this result.
Mean5
Standard deviation2
Recommended next checks
- →Select sample variance only when the values are a sample used to estimate a wider population.
- Mean
- 5
- Standard deviation
- 2
Try different values to compare results.
Table of Contents
Table of Contents
About Variance Calculator
Variance Calculator helps you work through the main numbers for this topic quickly with a simple input flow and an instant result.
Use the calculator result as a practical starting point, then review the explanation and assumptions on the page if you want more context.
Calculation method
Average squared deviations from the mean, dividing by n for a population or n-1 for a sample.
Formula explained
Calculation flow
This calculator is structured for fast UK-focused estimates with clear inputs, repeatable logic, and instant results.
Formula
Input values -> calculation engine -> instant result
How the result is built
1Enter the values requested in the form.
2The calculator applies the configured formula logic.
3The result updates instantly with a breakdown.
4Use the output to compare scenarios quickly.
Example
Example verified by the calculator's descriptive statistics reference cases.
Assumptions
- Two to 200 finite numeric observations with an explicit population/sample choice.
Source basis
- UK-focused calculator flow
- Structured input validation
- Instant result breakdowns
FAQ
Common questions
Trust and notes
Assumptions and important notes
This calculator is designed to give a fast estimate using the method shown on the page. Results are most useful when your inputs are accurate and the tool matches your situation.
Use the result as guidance rather than a final diagnosis or professional decision. If the result could affect health, legal, financial, or compliance decisions, verify it with a qualified source where appropriate.
- Two to 200 finite numeric observations with an explicit population/sample choice.
Method
UK calculator guidance
Last reviewed
April 17, 2026