How much do things cost in Catania and Belfast? Belfast is 13% more expensive than Catania Belfast Catania Small bottle of water (0.33 litre)£0.98£0.50 Large bottle of water£0.89£0.47 Coke/Pepsi (0.33 litre)£1.14£1.04 1 hour taxi waiting fee£15.00£13.42 source