Excel statistics calculator

Excel Statistics Calculator is a growing collection of Excel-based tools developed over time to support statistical calculation, methodological evaluation, and analytic reasoning.

The tools range from simple utilities (e.g., effect size calculators) to more complex and specialised applications, including tools for argument building and unconventional measurement tasks.

They are intended for general, exploratory, and educational use, and should be interpreted with care, as many provide approximations rather than exact estimates. For example, the “p to effect size” tool estimates the minimum effect size consistent with a given p-value and degrees of freedom, not the exact effect size.