London logs 0 hot days a year to Paris's 9 — London wins by 9. Paris also leads on outdoor-dinner months by 2.

London runs about $3,737/mo for a balanced lifestyle against Paris's $2,953/mo — Paris comes in $784 cheaper each month, roughly 27% less.

On mobility, Paris scores 4.6 vs London's 4.0 (0–5 scale), with the biggest gap on walkability.

London's culture score of 4.9 sits well above Paris's 4.7, with the biggest gap on live music venues.

Paris's nature & outdoors score of 4.7 sits well above London's 3.8, with the biggest gap on rock climbing. London still holds an edge on sea access.

London's safety score of 2.5 sits well above Paris's 2.2, with the biggest gap on road safety.

London and Paris score neck-and-neck on career (5.0 vs 4.9, 0–5 scale).

London's social & community score is ~1.3× Paris's — in the upper band, while Paris lands in the middle of the scale, with the biggest gap on everyday english. Paris still holds an edge on street atmosphere.

On food & dining, London scores 5.0 vs Paris's 4.2 (0–5 scale), with the biggest gap on brunch availability.

On family, London scores 4.6 vs Paris's 4.1 (0–5 scale), with the biggest gap on supermarkets.

On healthcare, Paris scores 3.7 vs London's 3.4 (0–5 scale), with the biggest gap on public healthcare quality.

London averages 8.6 µg/m³ (good) PM2.5 annually versus Paris's 10.1 µg/m³ (moderate) — London breathes ~14% cleaner air (1.4 µg/m³ lower).

Who Thrives Here