Is 0.021 carats as heavy as a Grain of Salt?
It's about 75 times as heavy as a Grain of Salt
The weight of a Grain of Salt is about 0.000285 carats.
The mass of a grain of salt is approximately 0.000285 carats. Salt consumption varies widely by country; the people of the United States consume a combined total of about 278,000,000,000 carats of salt each year.
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