26/4/2020 · How Much Does a Train Weigh? Short Answer: A train weight can range anywhere between 4,000 tons (8,818,490 lbs) and 20,000 tons (44,092,452 lbs) or even more under some particular instances. I am sure you have noticed the extremes of the above mentioned range, of how heavy a train is, that's mainly attributed to how many cars the locomotive is