The heaviest tank ever constructed was the German Panzerkampfwagen Maus, which weighed 188 tonnes (414,469 lb). By 1945, it had reached only the experimental stage and was abandoned. The heaviest operational tank used by any army was the estimated 75-tonne (165,346-lb) 12-man French Char de Rupture 2C bis of 1923, carrying a 15.5-cm (6.1-in) howitzer and powered by two 250-hp (186-kW) engines giving a maximum speed of 12 km/h (7.5 mph).
Heaviest tank ever
- Char de Rupture 2C bis, Panzerkampfwagen Maus
- 75 tonne(s)/metric ton(s)