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.
When to use this tool
This tool is designed for quick, practical tasks such as everyday calculations, data formatting, or simple conversions. It is best used when you need fast results without installing software or using complex tools.
When to use
- Quick checks or one-time calculations
- Validating or converting data before using it elsewhere
- Simple tasks that do not require advanced software
When not to use
- Critical financial, legal, or medical decisions
- Large-scale or automated processing
- Situations requiring guaranteed precision beyond basic validation
Always review results before using them in important contexts.
About this tool
This tool helps you perform quick utility operations directly in your browser. It runs entirely in your browser without sending data to a server.
You can use this tool when handling simple tasks without installing additional software. The results should be interpreted as a processed output based on your input data.
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.