Taxi from PEK to hotel and return

Hi there. How much is taxi from PEK international to Ping An Fu Hotel at 100 Dongsishitiao Dongcheng District, Beijing 100007 at around 11pm or 12am (as we arrive at 10:10pm) including toll fees and any other fees please. Also, to return to the airport and get there by 5:30am as we leave to go back home at 8:30am. Thanks so much ;-)