ANOVA Calculator
Run a one-way ANOVA from multiple groups. Enter one group per line to calculate group means, sums of squares, mean squares, degrees of freedom, and F statistic.
Enter one group per line. Within each line, separate values using commas or spaces.
Formula overview:
F = MS_between / MS_within
| Metric | Value |
|---|
Privacy: calculations run locally in your browser. No inputs are stored or transmitted.
How it works
One-way ANOVA compares group means by separating total variation into: between-group variation and within-group variation.
This page calculates:
SSB = sum of squares between groups
SSW = sum of squares within groups
MSB = SSB / df_between
MSW = SSW / df_within
F = MSB / MSW
Examples
- Group 1: 10, 12, 14, 13
- Group 2: 8, 9, 11, 10
- Group 3: 15, 16, 17, 18
- This produces a one-way ANOVA summary and F statistic.
FAQ
- What does this ANOVA calculator compute?
It computes a one-way ANOVA summary including grand mean, between-group sum of squares, within-group sum of squares, mean squares, degrees of freedom, and F statistic.
- How should I enter the data?
Enter one group per line. Within each line, separate numbers by commas or spaces.
- How many groups are required?
At least 2 groups are required, and each group must contain at least 2 numeric values for a meaningful within-group comparison.
- Does this calculator return a p-value?
No. This page focuses on the one-way ANOVA statistic and variance breakdown. It does not currently calculate the p-value.
- Are calculations stored?
No. Everything runs locally in your browser.