Eight free tools for the questions every buyer asks: what will it cost, will it fit, does it need planning permission, can I burn wood here, what heater and what supply.
Every calculator here runs on the same data as the rest of the site: 489 garden saunas and 74 heater listings, each priced on the retailer’s own page, and the official planning, electrical and energy rules. They’re free to use, and free to embed on your own site.
Which one to start with
- Still deciding? The sauna finder shows every model that fits your space, budget and seat count.
- Worried about planning? The planning permission checker tests your sauna against the rules for England, Wales, Scotland and Northern Ireland.
- Working out the budget? The garden sauna cost calculator adds the heater, assembly, electrics and base to the ticket price.
- Buying a heater separately? Size it with the heater size calculator, then check the electrical supply it needs.
- Thinking about the bills? The running cost calculator uses the current Ofgem price cap, and the cold plunge running cost calculator does the same for an ice bath chiller.
- Want a wood-fired sauna in a town? The smoke control area checker finds your council and what it says.
Using them on your site
Each calculator has an embed code at the bottom of its page. Paste it into any web page and the calculator appears there, with a small credit link back to us. Journalists and researchers can also download the data behind them under CC BY 4.0.