When to use: Use to size data center and server room infrastructure from rack power density (kW/rack). Outputs PDU amperage, UPS battery capacity for a target runtime, cooling load in BTU/hr and tons, airflow (CFM), and raised floor load. Applies to enterprise server rooms, colocation, and edge computing deployments. Standard rack density is 5–10 kW; high-density GPU racks reach 20–40 kW.