How much did a saber-toothed weigh?

1000 pounds
There were many species of saber toothed cats, and each one had a different weight. The heaviest one was Smilodon populator, and weighed 790 to 1,000 pounds. The most famous, Smilodon fatalis, weighed 350 to 620 pounds.
Saber toothed cats are a subfamily of the cat family. There are many species of saber toothed cat, and each one was a different size. One of the most famous species, Smilodon fatalis, weighed between 350 to 620 lbs, about the same weight as the Siberian tiger, the largest cat alive today.