Is 489.450 monme (匁) as heavy as a Bowling Ball?
It's about one-fourth as heavy as a Bowling Ball
The weight of a Bowling Ball is about 1,814.369480 monme (匁).
(most common selection among male bowlers)
With an allowable range of 1,330.537620 monme (匁), the most-preferred bowling ball weight among adult, male bowlers is 1,814.369480 monme (匁). Because regulation balls measure the same diameter irrespective of their weight, ball density varies by size and balls weighing less than about 1,333.333330 monme (匁) will float in water.
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