iPhone charger supports 240v

Hi! I'm located in North America and my iPhone charger says than can support a 110-240 voltage. Next week I'm traveling to UK and France and want to double check if the wall charger will supply power to my phone with the stardard 240v for Europe or if I need to purchase a voltage converter. A friend of mine told me that when he went to Spain, he used a wall adapter for Europe and his regular charger on it. Any advise will be really appreciated. Thanks!