Instagram is a cash cow…

And stars like Selena Gomez can make a lot of money per post.

A new report gathered data from the top followed celebs and influencers and calculated what kind of fortune the social media heavyweights can bring in.

Selena Gomez, who has around 122 million followers on Instgram is rumored to command 550,000 dollars per post.

And Kim Kardashian, who comes in at number 2, can bring in a cool half a million.

Cristiano Ronaldo, with his 104 million followers, can ask for 400,000 dollars per post, and Kylie and Kendall Jenner can make 400,000 and 370,000 dollars per post, respectively.

Khloe and Kourtney Kardashian have their posts valued at the quarter million dollar mark, while Cara Delevingne can ask for 150,000 dollars per post…

And Gigi Hadid and Lebron James can ask for 120,000 dollars.

So a message to all you other celebs out there: you better step up your social media game.