Convert 3 kg to grams
To convert kilograms to grams, you need to multiply the number of kilograms by 1000, because there are 1000 grams in a kilogram. 

So, 3 kilograms is equal to 3 * 1000 = 3000 grams.
Complete the following task based on the instruction and optional input provided.### Instruction:
Convert 3 kg to grams

### Output:
To convert kilograms to grams, you need to multiply the number of kilograms by 1000, because there are 1000 grams in a kilogram. 

So, 3 kilograms is equal to 3 * 1000 = 3000 grams.