Abstract: One example includes an RQL circuit simulation system. The system includes a circuit design tool that facilitates user inputs to design an RQL circuit design comprising at least one predetermined RQL circuit design component. The system also includes a memory system that stores the RQL circuit design and an RQL component library comprising predetermined RQL circuit design components from which the at least one predetermined RQL circuit design component is selected. Each of the predetermined RQL circuit design components includes predetermined RQL component metrics associated with performance of the respective one of the predetermined RQL circuit design components. The system also includes a circuit simulator configured to compile performance metrics associated with the RQL circuit design based on the predetermined RQL component metrics associated with the respective at least one of the predetermined RQL circuit design components and to simulate the RQL circuit design based on the performance metrics.