The weight of a double-decker bus can vary depending on the model and specifications of the vehicle. On average, a standard double-decker bus in the UK weighs between 12 to 16 tonnes (13 to 17.6 tons).

The weight of a double-decker bus varies depending on its size, model, and whether it’s empty or full, but here are the typical ranges:

Unladen (Empty) Weight:

• Traditional Routemaster-style (older): 7.5 - 12 tons
• Modern Double-Decker (e.g., Alexander Dennis Enviro400, Volvo B9TL): 11 - 14 tons

Gross Vehicle Weight (Fully Loaded):

This is the maximum legal weight including the bus itself, all passengers, fuel, and luggage. Standard Modern Double-Decker: 18 to 25 tons

Key Factors: Passenger Load: This is the biggest variable. A bus can carry 80-120 people. Assuming an average weight of 75kg (165 lbs) per person including hand luggage, the passenger load alone can add 6 to 9 tons. Construction: Modern buses use lighter materials like aluminum and composites, but are larger and have more features (air conditioning, accessibility equipment) than older models. Length: Most are around 10-11 meters, but longer “articulated double-deckers” (rare) would weigh more.

Summary in Tons:

• A modern empty double-decker bus weighs roughly 12 tons.
• The same bus in full service will be at or near its maximum gross weight of around 18-20 tons.

So, if you see one on the road, it’s almost certainly weighing between 18 and 20 tons.