Calculate Chi-Square critical values, visualize rejection regions, and explore comprehensive χ² reference tables for statistical testing and data analysis.
Chi-Square Table Calculator with Chi-Square Distribution Curve
Chi-Square Distribution
Find Critical Chi-Square Values
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What Is a Chi-Square Statistic?
The statistic compares observed counts with expected counts.
- O = observed frequency
- E = expected frequency
- df controls distribution shape
Common Critical Chi-Square Values
Upper-tail critical values.
| df | .10 | .05 | .01 |
|---|
Critical Values of the Chi-Square Distribution
Values are rounded to three decimals.
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Published: August 27, 2026
Last Updated: September 6, 2026
