How much do turtles weigh?

Answer 1

Sea turtles range in size from the 75-100 pound Kemp's ridley to the 1,300 pound, 8-foot-long leatherback.

also for more information:

There are seven different species of sea turtles globally, each of which has a scientific name and a common name. The common name is often a description of some characteristic of the turtle's body. For example, the four most common species in the eastern Caribbean are: The Hawksbill turtle (Eretmochelys imbricata): named because of its narrow head and large beak that resembles the beak of a hawk. The Leatherback turtle (Dermochelys coriacea): this is the only sea turtle without a bony shell.

Answer 2

It depends on the turtle it could way as little as 1/4 pounds (an adult) to as much as 100 pounds.