London and New York City have one of the highest costs of living in the world.
In fact, both cities are consistently ranked in top 20 most expensive cities to live in.
This being said, the "crown" must go to New York City, since the prices in the Big Apple are between 10% to 35% higher than in London
across almost all categories, from rent, which is 20% higher, to groceries, which cost 35% more in NYC.
There is however at least one category where London is significantly more expensive than its neighbour from across the pond — transportation.
From public transport and taxis, to gasoline prices and road taxes, they are all 25% to 130% more expensive in London than in New York City.
There is much to be said about England's capital city, for a deep dive in London's living costs check out
Cost of Living in London: The Ultimate Guide.