Statistical

CHISQ.INV.RT Function in Excel

Returns the inverse of the right-tailed probability of the chi-squared distribution.

Syntax

  • =CHISQ.INV.RT(probability, deg_freedom)

Arguments

  • probability (required): The right-tailed probability
  • deg_freedom (required): The number of degrees of freedom

Examples

  • =CHISQ.INV.RT(0.05, 10) - Critical value for alpha=0.05 - Result: 18.307

CHISQ.INV.RT for data analysis

  • Confirm whether you need entire columns, filtered subsets, or distinct values.
  • Use [COUNTIFS](/functions/countifs/) and [SUMIFS](/functions/sumifs/) for multi-criteria metrics.
  • Pivot tables complement single-cell statistical formulas for exploration.

Common errors

  • #NUM! if probability not between 0 and 1

Use cases

  • Finding critical values
  • Hypothesis testing

Frequently asked questions

  • What is the CHISQ.INV.RT function in Excel? CHISQ.INV.RT returns the inverse of the right-tailed probability of the chi-squared distribution. The syntax is =CHISQ.INV.RT(probability, deg_freedom). Typical use cases include finding critical values, hypothesis testing.
  • How do I use the CHISQ.INV.RT function? To use CHISQ.INV.RT, type =CHISQ.INV.RT( in a cell and provide the required arguments. Excel will show you the syntax and parameter hints as you type. Make sure to close the parentheses and press Enter to execute the function.
  • What type of data does CHISQ.INV.RT work with? CHISQ.INV.RT works with numerical data and can handle ranges, arrays, and individual values. It ignores text values and empty cells in its calculations, focusing only on numeric data for accurate statistical analysis.
  • Why is CHISQ.INV.RT not working in my Excel? Common issues with CHISQ.INV.RT include #NUM! if probability not between 0 and 1. Start by checking the syntax =CHISQ.INV.RT(probability, deg_freedom), then verify each referenced cell or range.

Editorial review

  • Reviewed by Excel.Directory Editorial Team. Updated May 2026.