Calculation of cylindrical helical compression springs in accordance with DIN 13906-01. Includes sizing (through specifying spring torque and installed dimensions) and calculation review of compression springs. Database with the most important spring materials. Presentation of spring curve, Goodman diagram for dynamically stressed springs. Tolerances and main dimensions in accordance with DIN 2076, 2077, 2096, 2097, EN 10270-1. Integrated database with spring geometry in accordance with DIN 2098 sheet 1.