Developed by StatCalc.net Team Statistically reviewed by — Senior Statistician & Editor Last updated
Analysis of Variance

ANOVA Calculator

Use this ANOVA calculator to perform a one-way or two-way ANOVA. Enter raw data or upload a dataset to get software-style tables, assumption checks, effect sizes, follow-up comparisons, interpretation, and an APA-formatted result.

Select ANOVA Type

1. Enter your data

Enter each independent group in a separate column. You can paste values directly from Excel or Google Sheets.

Supported files: CSV, TXT, XLS, and XLSX. The first row should contain the variable names.

Data Preview

The preview shows the first 8 rows of the uploaded dataset.

2. Select the variables

Analysis Options

Post Hoc Tests

Tukey HSD is selected by default. Post hoc comparisons are shown only when the applicable omnibus test is statistically significant. If homogeneity of variance is violated, Welch's ANOVA and Games-Howell comparisons are used automatically.

1. Enter your data

Enter the data in long format. Each row should contain one outcome value and the corresponding level of Factor A and Factor B.

Exam Score
Teaching Method
Study Mode
Supported files: CSV, TXT, XLS, and XLSX. The first row should contain the variable names.

Data Preview

The preview shows the first 8 rows of the uploaded dataset.

2. Select the variables

Analysis Options

Type III sums of squares are used so the main effects and interaction can be tested when group sizes are unequal. All Factor A × Factor B combinations must contain data.

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Cite

Choose APA, MLA, Chicago, or Harvard. Citations credit StatCalc.net as the corporate author.

StatCalc.net. (2026, October 19). ANOVA Calculator. Retrieved October 19, 2026, from https://statcalc.net/anova-calculator/

About This Calculator

This calculator was developed by the StatCalc.net Team and statistically reviewed by , Senior Statistician & Editor.

Formulas, calculation logic, worked examples, and explanatory content are reviewed for statistical accuracy and clarity.

Last updated