Sauna kWh per session
Cost is just kWh × your rate. This page isolates the energy term so you can check a meter or a spec sheet without mixing in dollars first.
The energy formula
kW = watts ÷ 1,000hours = minutes ÷ 60kWh per session = kW × (session hours + heat-up hours). Heat-up hours are 0 unless the heat-up toggle is on.
1,200 W × 30 min
1.2 × 0.5 = 0.60 kWh
1,800 W × 30 min
1.8 × 0.5 = 0.90 kWh
6 kW × 45 min + 30 min
6 × 1.25 = 7.50 kWh
Inputs
Use your rating plate and bill rate. Presets are typical nameplates, not a brand recommendation.
Off: only session minutes are billed. Traditional rooms often need 20–40 minutes of heat-up.
Optional: purchase amortization
Spreads a purchase price across years or a lifetime session count. Not financing or resale.
Live estimate
- kWh / session
- 0.90 kWh
- $ / session
- $0.17
- $ / month
- $2.86
- $ / year
- $34.33
Shareable query params update as you type. Canonical site: https://saunacost.xyz.
- Session
- $0.17
- Month
- $2.86