Abstract: A method of evaluating utilization of one or more computer systems includes monitoring utilization of a computer system for each of a plurality of time periods in a reporting period and, for each time period, assigning a numeric value based on the monitored utilization and a predefined scale of utilization ranges. The method also includes calculating an overall numeric value for the reporting period by combining the numeric values assigned to the plurality of time periods. The overall numeric value represents the utilization of the computer system during the reporting period. Additional methods and related computer systems are also disclosed.