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Distance from Köln to Bonn

Straight line

24.4 km
15.2 mi · 13.2 NM

By road

29.8 km
18.5 mi

Travel time

31 min
by car

Direction

SSE 155°
initial bearing

Open in the calculator (stops, directions, fuel cost) → Bonn → Köln

How far is Köln from Bonn?

Köln (Germany) and Bonn (Germany) are very close to each other: 24.4 km in a straight line, that is 15.2 miles or 13.2 nautical miles. The distance is measured over the Earth's surface (WGS84 ellipsoid) along the shortest possible path.

By road, Köln to Bonn is 29.8 km (18.5 miles), about 31 min by car on the fastest route, without traffic or stops. The road is 22% longer than the straight line.

From Köln, Bonn lies to the south-east (initial bearing 155°). Both cities are in Germany. The halfway point is at 50.8339°, 7.0229°.

Over such a short distance flying makes no sense; driving is the fastest option – the road distance and driving time are shown on the map.

Frequently asked questions

How far is Köln from Bonn?

By road it is 29.8 km (18.5 miles) from Köln to Bonn; in a straight line it is 24.4 km (15.2 miles).

How long is the drive from Köln to Bonn?

About 31 min on the fastest route (29.8 km), without traffic or stops.

In which direction is Bonn from Köln?

Bonn is to the south-east of Köln, at an initial bearing of 155°.

How long is the flight from Köln to Bonn?

A direct flight would take about 32 min at an average cruising speed of 800 km/h.

How is the distance calculated?

The straight-line distance is computed on the WGS84 ellipsoid with the Vincenty formula, accurate to the metre. The road distance comes from OpenStreetMap roads.