Circuit Converters (qiskit.converters)

circuit_to_dag(circuit)	Build a DAGCircuit object from a QuantumCircuit.
dag_to_circuit(dag)	Build a QuantumCircuit object from a DAGCircuit.
circuit_to_instruction(circuit[, …])	Build an Instruction object from a QuantumCircuit.
circuit_to_gate(circuit[, parameter_map, …])	Build a Gate object from a QuantumCircuit.
ast_to_dag(ast)	Build a DAGCircuit object from an AST Node object.