PURPOSE: To provide material physical property calculating device enabling even a beginner to easily calculate the physical properties of a material without requiring expert's assistance.

CONSTITUTION: The material physical property calculating device has a data input means 10 and a data learning means 12 and is constituted so as to learn input data from the means 10 by the means 12 and calculate the electronic state and/or electronic arrangement of a material by the means 14 based upon the learned result.