Caitlyn Jenner could make an insane amount to write a memoir

Although Caitlyn Jenner wasn't paid for doing the explosive Vanity Fair cover story, she still stands to make a lot of money for telling her story.

EW rounded up publishing experts who gave their educated opinion on how big Jenner's advance could be for writing her memoir.

The estimates ranged from $10 to $15 million.

Authors are paid advances with the expectation that the book sales will make that advance up and then some.

Why would Jenner's memoir be worth so much?

"The book is going to be a mega-bestseller," said Regan Arts' director of marketing and publicity, Emi Battaglia. "It has the ability to remain on the list for a significant period of time."

That kind of advance doesn't go to every celebrity looking to detail their life in prose. That amount of money places Jenner in the realm of Bill Clinton, who made an estimated $10 million on his 2001 deal. His wife and current presidential candidate Hillary Clinton got an $8 million advance for her 2000 deal.

Here's a sample of other celebrities' book deals for comparison:

Demi Moore $2 million (Yet to be released)

Lena Dunham $3.7 million ("Not That Kind of Girl")

Tina Fey $5 million ("Bossypants")

Mindy Kaling and B.J. Novak $7.5 million (Yet to be released)

Before transitioning into a woman, Bruce Jenner wrote several books, including "Finding the Champion Within" and "Decathlon Challenge: Bruce Jenner's story."