The Japanese 1-yen coin weighs exactly 1 gram. It is made of 100% aluminum. This coin is so light that it can even float on water.
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What coin weighs exactly 1 g?
Good point! The Japanese 1 yen coin has a mass of 1 gram, lighter than the British penny (3.56 g), the United States penny (2.5 g), the Euro cent (2.30 g), and the Australian 5 cent coin (2.80 g).
What coins weigh in grams?
Penny: 2.500 g (0.08818 oz)
Nickel: 5.000 g (0.1764 oz)
Dime: 2.268 g (0.08000 oz)
Quarter: 5.670 g (0.2000 oz)
Half-dollar: 11.340 g (0.40001 oz)
Dollar coin: 8.1 g (0.29 oz)
What typically weighs 1 gram?
1 gram is about the mass of a metal paperclip. The quick and dirty comparison to keep in your head is that 1 gram is about the mass of a metal paperclip. Or, if you prefer, it’s about the mass of a US dollar bill.