# Free tools

Free tools for private home wellness rooms: custom saunas, steam rooms, cold plunges and recovery rooms, and the firms that build, install and sell them. You need no account.

- [Home wellness room cost estimator](https://privatewellnessrooms.fyi/tools/home-wellness-room-cost-estimator.md): Estimate the cost of a home sauna, steam room and cold plunge from published price ranges, with your own markup for installation and finishes.
- [Sauna room volume and heater size calculator](https://privatewellnessrooms.fyi/tools/sauna-heater-size-calculator.md): Enter the room size and the glass and stone surfaces to get the sauna volume and the heater power range to ask your builder about.