Graduate tuition and fees: The average cost of tuition and fees for a two-year master's degree in marine biology is \$15,000 per year at a public college or university, and \$25,000 per year at a private college or university. The average cost of tuition and fees for a four-year doctoral degree in marine biology is \$20,000 per year at a public college or university, and \$35,000 per year at a private college or university.
Other expenses: In addition to tuition and fees, marine biologists may also need to pay for books, supplies, research equipment, and travel. The total cost of training and education to be a marine biologist can vary significantly depending on the individual's choice of school and the length of their degree program.