How much do things cost in Bucharest and Cardiff? Cardiff is 77% more expensive than Bucharest Cardiff Bucharest 3 course meal for 2£35.00£18.41 A dozen eggs£1.92£1.47 Large bottle of water£1.09£0.47 Petrol (1 litre)£1.37£1.11 Last updated on 15/04/2014 source