How much do things cost in Barcelona and London? London Barcelona Local draught beer (0.5 litre)£3.80£1.98 Taxi - fixed fee£3.00£1.98 Petrol (1 litre)£1.39£1.17 Cappuccino£2.46£1.29 Bottle of beer (imported beer)£1.60£0.93 Last updated on 21/07/2014 source