Confidence Interval Calculator

Find the Confidence Interval for Your Data in Seconds

Sample Mean (x)

Sample Size (n)

Standard Deviation (s)

Confidence Level

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The Confidence Interval Calculator allows you to quickly compute the confidence interval for a population mean based on sample data. Just enter the sample mean, sample size, standard deviation, and confidence level (e.g., 90%, 95%, 99%), and the tool does the math instantly.

Confidence intervals are crucial in statistics and research for estimating the range within which a true population parameter is likely to fall. This tool is ideal for students, researchers, analysts, and professionals who need precise statistical insights.

No manual calculations or statistical software required—just simple, accurate results delivered fast.

Dhisana

Author

Appreciate the small moments in life, because one day, you might look back and see they were actually the most meaningful. Many of life's setbacks come from those who didn’t realize how near they were to success when they gave up.