Confidence Interval Calculator
Calculate confidence intervals for statistical analysis. Enter Sample Mean, Standard Deviation, Sample Size and Confidence Level (%) to get Lower Bound, Upper Bound and M
Parameters
Enter the required details below
Ready to Calculate
Enter your parameters and click calculate to see the results here.
How to Use
- Enter Sample Mean.
- Enter Standard Deviation.
- Enter Sample Size.
- Click Calculate to see Lower Bound, Upper Bound and Margin of Error.
- Check the result. Use Reset if you want to try different numbers.
About This Calculator
Calculate confidence intervals for statistical analysis. This tool is in the Math Calculators collection on Qalculators. Enter Sample Mean, Standard Deviation, Sample Size and Confidence Level (%) to calculate Lower Bound, Upper Bound and Margin of Error. Results stay in your browser unless you copy them.
Frequently asked questions
What does Confidence Interval Calculator calculate?+
Calculate confidence intervals for statistical analysis. You enter Sample Mean, Standard Deviation, Sample Size and Confidence Level (%) and receive Lower Bound, Upper Bound and Margin of Error.
What information do I need for Confidence Interval Calculator?+
You need Sample Mean, Standard Deviation, Sample Size and Confidence Level (%). Optional fields can stay at their defaults.
Is Confidence Interval Calculator free to use?+
Yes. Confidence Interval Calculator is free and does not require an account. The calculation runs in your browser.
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