Advanced Confidence Interval Calculator 2025

Professional statistical analysis tool for calculating confidence intervals with multiple distributions

Calculator Configuration

Calculation Type

Mean (μ) Confidence interval for population mean

Proportion (p) Confidence interval for population proportion

Difference of Means Confidence interval for difference between two means

Confidence Level

90%

95%

98%

99%

Please select a calculation type above.

Confidence intervals provide a range of plausible values for population parameters.