Math & Statistics
One-Way ANOVA Calculator
Compare the means of three groups using an F-test.
Your inputs
Change any value to update the result instantly.
F-statistic
3.2215
df between
2
df within
27
P-value
0.0556
No significant difference among group means
Formula and working
F = MSbetween ÷ MSwithin
- 1
Collect the inputs
Group 1 mean = 20; Group 1 std dev = 3; Group 1 size = 10; Group 2 mean = 24; Group 2 std dev = 3.5; Group 2 size = 10; Group 3 mean = 22; Group 3 std dev = 4; Group 3 size = 10
- 2
Apply the formula
F = MSbetween ÷ MSwithin
- 3
Result
F-statistic = 3.2215
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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