Embeddable Widget
Chi-Square Test Calculator — Free Embed
Add a categorical-data analyzer to your page in seconds. Visitors enter a contingency table (or observed vs. expected counts) and get the chi-square statistic, degrees of freedom, p-value, and Cramér's V effect size — ideal for survey cross-tabs and frequency comparisons.
Copy & paste this embed code
Paste it into any HTML page, blog post, Notion embed, or website builder. No account needed.
<iframe src="https://statmate.org/embed/chi-square" width="100%" height="1180" style="border:1px solid #e5e7eb;border-radius:12px;max-width:760px" loading="lazy" title="Chi-Square Calculator by StatMate"></iframe>Live preview
What the Chi-Square Test calculator computes
- Chi-square test of independence for r×c contingency tables
- Chi-square goodness-of-fit against expected frequencies
- χ² statistic, degrees of freedom, and p-value
- Cramér's V effect size for association strength
- Expected-count table and APA 7th output
How to embed it
- Copy the embed code above.
- Paste it into your page's HTML where you want the calculator to appear.
- Adjust
widthandheightif needed — the widget is responsive. - Publish. The calculator runs entirely in your visitor's browser.
Who uses it
- Survey and polling write-ups testing group differences
- Biology/genetics pages checking observed vs. expected ratios
- UX researchers comparing categorical outcomes across variants
Frequently asked questions
- What is the minimum expected count?
- A common rule is that expected counts should be ≥5 in most cells. The widget shows the expected-count table so visitors can check this assumption.
- Does it handle larger than 2×2 tables?
- Yes. The independence test supports any r×c table, not just 2×2.
- Can I remove the StatMate link?
- No — the attribution link is required and keeps the widget free to embed.
Want the full version with APA export, charts, and AI interpretation?
Open the full Chi-Square Test calculator →