Mass of a concert grand piano

Mass of a concert grand piano (450 kg)

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If Mass of a concert grand piano (450 kg) was a standard unit ...

Mass of Gulfstream G650 business jet (45,400 kg)...more would be 100 x Mass of a concert grand piano
Mass of the Hubble Space Telescope (11,110 kg)...more would be 25 x Mass of a concert grand piano
Mass of an ostrich (approx) (111 kg)...more would be 1/4 of Mass of a concert grand piano
Mass of lightest allowable Heavyweight boxer (90.8 kg)...more would be 1/5 of Mass of a concert grand piano
Mass of a baby African Elephant at birth (90 kg)...more would be 1/5 of Mass of a concert grand piano
Mass of a typical microwave oven (18 kg)...more would be 1/25 of Mass of a concert grand piano