Berlin vs Köln for couples
Berlin and Köln are both in Germany, about 479 km apart. Every figure below comes from the data behind our city pages: an estimated monthly cost for a couple, tax tier, annual climate, safety, healthcare, internet speed, language and residency rules. Köln leads on cost.
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Side by side
Source: the datasets behind our city pages. Cost is our model estimate (a country-level cost index scaled for city size); tax tiers are assigned by hand from each country's top marginal income tax rate and overall tax reputation; temperature from the Open-Meteo archive (2019 to 2023 averages); rainfall from TerraClimate (1991 to 2020 normals); safety and healthcare are our own country-level estimates; internet from the Ookla Speedtest Global Index; English from the EF English Proficiency Index; residency from our hand-reviewed residency dataset (not legal advice); short-stay entry from the passport-index dataset.
Factor by factor
Cost of living
Köln is cheaper: we estimate about €3,665 a month for a couple living centrally, against €3,844 in Berlin. That is €179 a month, or 5%, less.
Taxes
Same country, same tax: Germany is in our high tax tier.
Climate
Köln is 1°C warmer on average over the year: 12°C against 11°C in Berlin. Berlin is drier, with about 584 mm of rain a year against 784 mm in Köln (26% less).
Safety
Our safety score is country-level, so both cities get the same 65 out of 100.
Healthcare
Our healthcare score is country-level, so both cities get the same 79 out of 100.
Internet
Our broadband figure is country-level: about 90 Mbps median fixed download in both.
Language
Main languages in both: German. English proficiency is rated the same in both: good English.
Residency and visas
Same country, same rules: long-term residency in Germany is rated comparatively open, with a self-funded route from about $1,270 a month in income.
Which one fits a couple
On the factors we measure, Köln leads on cost (€3,665 against €3,844 a month), and Berlin leads on none of them. What our data does not cover can still tip it toward Berlin: jobs, family nearby, or simply which one each of you prefers after a visit.
Climate can pull the two of you apart too: whoever minds rain will prefer Berlin (584 mm a year against 784 mm).
Both are large cities, but Berlin is near the coast and Köln is inland.
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