Confidence
Interval
Calculator

Calculate confidence intervals for a population mean from sample mean, standard deviation, and sample size. Supports Z and T distributions.

Sample Data

Result

Distribution

Z-distribution (n >= 30)

Margin of Error

1.9600

95% Confidence Interval

[48.0400, 51.9600]

Learn more

What does 95% confident actually mean, and why is it not what you think?

Confidence Interval Calculator | ToolsCanvas