What size are leatherback sea turtles when they are babys?

Leatherback sea turtle hatchlings are typically about 2 to 3 inches long and weigh around 0.5 to 1 ounce at birth. They are relatively small compared to their adult size, which can reach up to 6 to 9 feet in length and weigh between 500 to 2,000 pounds. Hatchlings are equipped with a soft shell and are dark in color, which helps them camouflage in the ocean.