Two-Way ANOVA Calculator
Run a balanced 2×2 two-way ANOVA from four raw-data cells, reporting main effects, interaction, F statistics and p-value approximations.
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transparent result
Calculator inputs
Two-Way ANOVA Calculator results
How the calculation works
Balanced 2×2 sums of squares partition variation into factor A, factor B, interaction and within-cell error.
What to verify
The displayed p-values are a lightweight approximation; use statistical software for publication-grade tail probabilities and assumption diagnostics.
How accurate is this calculator?
It is a transparent planning calculation based on the entered values and stated assumptions. Verify inputs and obtain professional or supplier confirmation where the decision is consequential.
Does it use U.S. defaults?
Yes. U.S. units, terminology, pricing conventions and rules are the primary defaults where location matters.
Is data sent to a server?
No. The calculation runs locally in the browser and does not send entered values to a remote calculation service.