1 meter. West African turtle is a large turtle, which can grow to more than 1 meter, and the weight of adult West African turtle will reach more than 200 kilograms. However, the growth rate of West African turtles is relatively slow, and it takes several years to reach the adult size. West African turtle, also known as West African side-necked turtle or West African mud turtle, is an aquatic turtle species distributed in West Africa.