1 kilometer = 1,000 meters
3 kilometers = 3,000 meters
423,000 kilometers is equal to 423,000,000 meters
Your question does not make sense. That is like saying, how many miles are equal to five miles? Well obviously, the answer is five miles...
49 kilometers = 49,000 meters
5 meters = 0.005 kilometers
7 meters = 0.007 kilometers
24 kilometers = 24,000 meters
182 kilometers = 182,000 meters
190 kilometers = 190,000 meters
4.8 kilometers = 4,800 meters
1,200,000 meters = 1,200 kilometers
706.8 kilometers=706,800 meters
9 kilometers=9,000 meters