1 kg cotton or 1 kg iron, which is heavier?

1 kg = 500g

One kilogram of cotton = 500 grams.

One kilogram of iron = 500 grams.

Therefore, their weights are the same. On the premise of the same quality, the density of cotton is smaller than that of iron, so the volume of a kilo of cotton is much larger than that of a kilo of iron. So many people subconsciously think that iron will definitely be heavier than cotton, but the weight of both is actually one catty, which is the same weight.

Extended data:

Mass unit conversion

(1) 1 kg = 0.00 1 ton

(2) 1 kg = 1 1,000 g.

(3) 1 kg = 1 ,000,000 mg

(4) 1 kg = 1 μ g

(5) Metric system: 1 kg = 10 Liang = 100 Yuan.

(6) Quote system: 1 kg = 16 Liang = 160 yuan.

(7) 1 two = 0.05kg = 50g

(8) 1 kg = 10 Liang?

(9) 1 kg = 0.5 kg = 500 g.