How heavy is a grown sea turtle?

The weight of a grown sea turtle varies significantly by species. For instance, a loggerhead turtle can weigh between 200 to 400 pounds (90 to 180 kg), while a leatherback turtle can reach weights of up to 2,000 pounds (900 kg) or more. Other species, like the green sea turtle, typically weigh between 200 to 500 pounds (90 to 227 kg). Overall, sea turtles are among the heaviest reptiles in the world.