By foot, a handful of islands. By bike, a continent.

Only the bright core has it all on foot.

A "15-minute city" means daily life — work, shops, care, learning, somewhere to enjoy — within a 15-minute walk. By that test only Helsinki’s core qualifies: just 1,604 of 6,656 cells score a full five on foot.

…and the city breathes open.

The complete area more than doubles — 1,604 → 3,603 cells. A bike adds no roads; it just makes the same Helsinki reachable.

Almost everything falls out of reach at once.

Past the centre a 15-minute walk stops covering daily life — 5,052 of 6,656 cells miss at least one need. The two that tip first are work (2,091) and care (1,929), neck and neck. Colours show the first thing too far.

This is walking proximity, not provision — Helsinki has clinics and offices; outside the core they’re just past a 15-minute walk.

Stand anywhere and see your 15 minutes.

Pick a spot. The map shows what that corner reaches on foot, by bike, by transit — and names the one thing that’s too far.

Tap any cell to stand there.

Switch modes to watch your 15-minute world grow.