Things measured in double-decker buses
A double-decker bus weighs about 12.65 t, which makes it a usable informal unit — "three elephants" lands where a raw figure in kg does not. Every comparison below is computed from a sourced figure rather than an invented average.
Things measured in double-decker buses
| Thing | Mass | In double-decker buses |
|---|---|---|
| excavator | 1,000–90,000 kg | 1.58 double-decker bus |
| fire truck | 14,000–36,000 kg | 1.50 double-decker bus |
| whale shark | 9,000–21,000 kg | 1.19 double-decker bus |
| semi truck | 12,000–36,290 kg | 1.19 double-decker bus |
| garbage truck | 12,000–20,000 kg | 1.19 double-decker bus |
| concrete mixer truck | 11,000–16,000 kg | 1.11 double-decker bus |
| Big Ben | 13.76 t | 1.09 double-decker bus |
| city bus | 11,000–20,000 kg | 1.07 double-decker bus |
| Hubble Space Telescope | 11.11 t | 1.14 of these per double-decker bus |
| school bus | 6,500–12,000 kg | 1.33 of these per double-decker bus |
| African elephant | 2,200–10,400 kg | 2.11 of these per double-decker bus |
| helicopter | 1.2–9.979 t | 2.42 of these per double-decker bus |
| ambulance | 3,200–6,800 kg | 2.53 of these per double-decker bus |
| MRI machine | 3,000–11,000 kg | 2.53 of these per double-decker bus |
| orca | 1,300–10,000 kg | 3.16 of these per double-decker bus |
| tractor | 1,000–15,000 kg | 3.16 of these per double-decker bus |
Why informal units work
Absolute figures fail because most people have no calibrated sense of a kilogram above about the weight of a shopping bag, or of a metre above their own height. A familiar object supplies that calibration by borrowing it from something already known — which is the same reason a scale bar on a map beats a stated ratio, and why "the size of Wales" persists in journalism despite being useless to anyone who has not been there.
The figure for one double-decker bus is itself a range rather than a constant — see its own page for the spread. These comparisons are for intuition, not measurement.
Common questions
- How much does a double-decker bus weigh?
- 12.65 t
- Why compare things to double-decker buses?
- Because most people have no calibrated sense of large absolute figures. A familiar object borrows intuition from something already known.
Related pages
- How much does a double-decker bus weigh? Full figure and range
- Measured in school buses 6,500–12,000 kg
- Measured in city buses 11,000–20,000 kg
- Measured in African elephants 2,200–10,400 kg
- Measured in Asian elephants 2,000–6,000 kg
- Measured in blue whales 50–190 t
- Measured in giraffes 700–1,930 kg
- Measured in cars 1,100–2,100 kg
- Measured in pianos 130–550 kg
- Measured in refrigerators 70–170 kg
- Measured in washing machines 55–115 kg
Sources
- Typical range compiled from manufacturer specifications — At One Place