Split a shared Airbnb or vacation rental — fairly
On a group trip, the rooms are rarely equal: someone gets the master suite with the en-suite, someone gets the bunk room, someone takes the sofa-bed nook. Splitting the total stay evenly means the person in the bunk room quietly subsidises the one in the suite. This free Airbnb cost split calculator prices each room instead, so the division is envy-free — nobody would rather swap into another guest's room at the price that guest is paying.
Enter the total cost of the stay, add each room, add each guest, and let everyone choose the room they prefer as the prices adjust. The amounts always sum exactly to the total you paid the host, to the cent — so the booking is covered and no one feels they overpaid for a worse room.
It works for any shared stay, not just monthly rent — a weekend Airbnb, a ski chalet, a summer villa. No account, no ads, no tracking; two to ten guests.
Sharing a home long-term instead? See the roommate rent calculator or student flat rent split, or learn how it works.