This Pythagorean theorem calculator template is prepared in MS Excel to give you ease of use. It is a learning aid which also elaborates the process with easy-to-follow steps. This Pythagorean Theorem calculator not only calculates the answer of your question, but also explains crucial findings of your answer. You can download this template to your system where you have installed MS Excel. It is a self-explanatory formula-based calculator, where you are required to put the right figures in the right tab.