Free online statistical calculators

Just want to run a quick statistical test on some data? Try our free online calculators, which let you use the graphing and statistical test functions of DataClassroom without signing up for an account. Sign up to use the full app.

 

T-test

To see if there is a significant difference between two groups of results.

Go to the T-test calculator

 
 

ANOVA

To see if there is a significant difference between three or more groups of results.

Go to the ANOVA calculator

 
 

Chi-square Goodness of Fit

To see whether the distribution of result values differs significantly from the expected distribution.

Go to the Chi-square Goodness of Fit calculator