Choose the kind of calculator you want to use

Categorical data

Fisher's, Chi square, McNemar's, Sign test, CI of proportion, NNT (number needed to treat), kappa.

Continuous data

Descriptive statistics, detect outlier, t test, CI of mean/difference/ratio/SD, multiple comparisons tests, linear regression.

Statistical distributions and interpreting P values

Calculate P from t, z, r, F or chi-square, or vice-versa. View Binomial, Poisson or Gaussian distribution. Correct a P value for multiple comparisons and Bayes.

Random numbers

Assign subjects to groups, simulate data.

Chemical and radiochemical data

Create and convert molar solutions, convert moles & grams, radioactivity calculations.