In 2009 Magnussen moved up to Formula Renault, finishing runner-up to António Félix da Costa in the Northern European Cup and finishing seventh in the Eurocup, driving for Motopark Academy.
En 2009 Magnussen pasou a Fórmula Renault, terminando segundo por detrás de António Félix da Costa na Copa de Europa do Norte e sétimo na Eurocopa, pilotando para Motopark Academy.