A physical energy-converting rotor has a rotor body and multiple weights. When the rotor body is rotated, an inner virtual orbit and an outer virtual orbit are formed and the weights are rotated. The weights are moved back and forth between the inner and outer virtual orbits to form non-balances to keep the rotor body rotating. The physical energy-converting rotor may operate alone, or may cooperate with non-pollution generators such as wind generators and water generators to enhance power-generating effect.