Confidence Interval Calculator


Confidence Interval Calculator is a free online tool that displays the confidence interval for the given parameter values. BYJU’S online confidence interval calculator tool makes the calculation faster, and it displays the interval value in a fraction of seconds.

How to Use the Confidence Interval Calculator?

The procedure to use the confidence interval calculator is as follows:
Step 1: Enter the confidence level, sample size, standard deviation, mean in the respective input field
Step 2: Now click the button “Calculate” to get the interval value
Step 3: Finally, the confidence interval will be displayed in the new window

What is Meant by the Confidence Interval?

In Statistics, a confidence interval is defined as an interval estimation, and it calculates the probability, where the parameter that falls between the two sets of values. It measures the degree of certainty or uncertainty in the sampling method process. Most of the time, the confidence intervals reflect the confidence level of 95% or 99%. It is noted that confidence level and confidence intervals are interrelated to each other, but both are not the same.

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