TEMPE, Ariz. – It’s no secret that San Francisco is one of the most expensive cities in the country to live in.

And it’s no secret that the Phoenix metro area has a significantly lower cost-of-living than the Bay Area. Darnell Dockett knows how far his money went in Arizona during the last 11 years.

He’s about to find out how far it won’t go in San Francisco.

Dockett reportedly turned down a one-year deal from the Cardinals worth $2.5 million to sign a two-year contract with the 49ers on March 5 that will pay him up to $7.5 million over two seasons including $4 million in 2015. If a handful of cost-of-living calculators are correct, his 2015 salary may not be enough for Dockett to live the type of lifestyle in San Francisco that he could have with $2.5 million in Arizona.

According to Bankrate.com, $2.5 million in Arizona (before taxes) is worth $4,323,406.48 in San Francisco, an increase of 72.9 percent.

According to Nerdwallet.com, $2.5 million in Arizona is worth $4,484,043 in San Francisco, an increase of 79 percent.

And then there were the extremes. One site, Bestplaces.net, valued a $2.5 million salary in Phoenix at $6,132,457 in San Francisco, while Salary.com valued a $2.5 million salary in Phoenix at $3,374,169 in San Francisco.

Dockett has earned more than $52 million throughout his 11-year career and he has been wise with his savings, so a few hundred thousand dollars shouldn’t impact him much.

According to Nerdwallet.com, the overall cost of living in San Francisco is 70 percent more expensive than Arizona – including a housing market that’s 234 percent pricier than the Valley of the Sun. The site states that food is 25 percent more expensive in San Francisco and entertainment is 27 percent higher.

Numbeo.com says that groceries in San Francisco are 41.8 percent higher than in Phoenix while restaurants are 30.9 percent more expensive.

But while he appears to have taken the money and run, in reality Dockett may have lost money on his 2015 salary.