Climate
Bonn logs 8 hot days a year to Frankfurt am Main's 18 — Bonn wins by 10. Bonn also leads on frost days by 10.
Bonn
Feels-like °C
Dinner outside
Frankfurt am Main
Feels-like °C
Dinner outside
Cost of Living
Bonn is $210/mo cheaperBonn runs about $2,386/mo for a balanced lifestyle against Frankfurt am Main's $2,596/mo — Bonn comes in $210 cheaper each month, roughly 9% less.
Bonn
$2,386monthly · balanced
Frankfurt am Main
$2,596monthly · balanced
Mobility
On mobility, Frankfurt am Main scores 4.2 vs Bonn's 2.8 (0–5 scale), with the biggest gap on flight connectivity. Bonn still holds an edge on car efficiency.
Culture
Frankfurt am Main's culture score of 3.7 sits well above Bonn's 3.2, with the biggest gap on theatre & performing arts. Bonn still holds an edge on history museums.
Nature & Outdoors
Bonn and Frankfurt am Main score neck-and-neck on nature & outdoors (4.0 vs 4.2, 0–5 scale).
Safety
Bonn's safety score of 4.3 sits well above Frankfurt am Main's 3.9, with the biggest gap on property crime safety.
Career
Frankfurt am Main's career score of 4.0 sits well above Bonn's 3.1, with the biggest gap on economic scale.
Social & Community
Frankfurt am Main's social & community score of 3.1 sits well above Bonn's 2.8, with the biggest gap on expat-first community.
Food & Dining
On food & dining, Frankfurt am Main scores 3.2 vs Bonn's 2.6 (0–5 scale), with the biggest gap on brunch availability.
Family
On family, Frankfurt am Main scores 3.5 vs Bonn's 2.5 (0–5 scale), with the biggest gap on international schools.
Healthcare
Bonn and Frankfurt am Main score neck-and-neck on healthcare (3.7 vs 3.7, 0–5 scale).
Air Quality
Bonn averages 9.1 µg/m³ (good) PM2.5 annually versus Frankfurt am Main's 9.5 µg/m³ (good) — Bonn breathes ~5% cleaner air (0.4 µg/m³ lower).
Bonn
Frankfurt am Main
PM2.5 annual average
WHO classification
City Scale
Both maps at the same real-world scale — 1 cm on either map is the same distance.
Bonn (756K) and Frankfurt am Main (916K) are 1.2x in population — Frankfurt am Main is the larger metro, Bonn the smaller; on land area Bonn spans roughly 1.4x more ground.
These cities are similar in overall scale
Combined population & area comparison
BonnFrankfurt am MainCity Scale Rankings
Frankfurt am Main916K1.2xBonn756K1xBonn274 km²1.4xFrankfurt am Main193 km²1xBonn
Frankfurt am Main
Who Thrives Here
Frankfurt am Main is the stronger fit for the frequent traveller. Both cities work well for the escaping weather.
Also compared
Frequently asked about Bonn vs Frankfurt am Main
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The best city depends on what matters to you
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