The largest Megalodon teeth could reach sizes in excess of 7 inches.  Compare this to the largest modern day Great White Shark teeth which are under 3 inches.  Check out the photo below comparing a large fossil Megalodon tooth, a fossil Great White Shark tooth (they grew bigger during the Miocene) and a modern day Great White tooth.  Pretty impressive…

megalodon vs great white shark tooth

6 5/8″ fossil Megalodon tooth, a 3 1/8″ fossil Great White and a 1 1/2 inch modern day Great White. Photo Credit: Brandon Zulli of FossilDriven.com

Most recent analysis puts the Megalodon’s maximum size at around 60 feet in length and maximum weight of between 50-70 tons.  Obviously, this represented the very largest individuals and most adult Megalodon sharks would not have achieved this size.  But, compare this to the largest confirmed Great White Shark which was 21 feet long and 3 1/2 tons.  That makes the Megalodon three times as long and over 20 times as heavy.  In fact a baby Megalodon shark would have been the size of a large, adult Great White.

Megalodon size compared with a Whale Shark, modern Great White Shark and human.

Megalodon size compared with a Whale Shark, modern Great White Shark and human.