Which of the following is a correct conversion of 50 kg 5000 kg, 50,000 mg, 50,000 g, 5,000,000 g

Here are the conversions:

50 kg is equal to 50,000 g or 50,000,000 mg.

5,000 kg is equal to 5,000,000 g or 5,000,000,000 mg.

50,000 mg is equal to 0.05 g or 0.00005 kg.

50,000 g is equal to 50 kg or 0.05 metric tons.

5,000,000 g is equal to 5,000 kg or 5 metric tons.

In other words 50,000 g = 50 kg