The distance between Cologne (North Rhine-Westphalia, Germany) and Mainz (Rhineland-Palatinate, Germany) is ca. 139,2 km (air line).
Distance between Cologne and other cities and places worldwide
Distance between Cologne and other major cities
Los Angeles9152 km
Vancouver7909.5 km- New York City6047.7 km
Mexico CIty9409.6 km
London496.4 km
Paris402 km
Berlin478.3 km
Stockholm1167.7 km
Tokyo9342.9 km