T-test Calculator

t-test is used to determine, for example, if the means of two data sets differ significantly from each other.
Our T test calculator is the most sophisticated and comprehensive T-test calculator online.
Our Student's t-test calculator can do one sample t tests, two sample paired t-tests and two sample unpaired t-tests.
Results page will give you t-Score, standard error of difference, degrees of freedom, two-tailed p-value, mean difference and confidence range. You can choose the confidence interval.

Select a type of t-Test:

One-sample t-Test Two-sample Paired t-Test Two-sample Unpaired t-Test

Select an input format:

Raw Data Mean, SD and N Mean, SEM and N

Enter data: