One kilogram is not equal to one kilogram, but one kilogram is equal to 0.5 kilogram.

Solution: kilograms, grams and kilograms are all units of weight measurement.

Because 1 kg = 1 000g,1kg = 500g.

So 1 kg = 1x500g = 500g,

500 g =500÷ 1000 kg =0.5 kg.

That is, 1 kg is equal to 0.5 kg.

Extended data:

1, weight unit type

(1) The international weight units are tons, kilograms, grams and milligrams.

(2) The commonly used weight units in China are gold, beam and money.

(3) The weight units commonly used in Europe and America are pounds and ounces.

2. Conversion relationship between weight units

1 ton = 1 000kg, 1 kg = 1 000g, 1 g = 1000mg,1kg =10.

3. Weight measuring tools

Common weighing tools include electronic scale, platform scale, pole scale, balance, spring scale and ground scale.

Baidu encyclopedia-weight unit