How much does it cost to run a home sauna?
A typical home sauna draws about 4500 watts. Used 1.5 hours a day, that works out to roughly $1.15 per day, $19.13 per month, and $229.50 per year on an average electricity rate of 17¢ per kWh. Home saunas draw 3000-6000W and require significant energy to heat to operating temperature.
Home Sauna running cost calculator
- Per day
- $1.15
- Per month
- $19.13
- Per year
- $229.50
- CO₂ / year
- 540 kg
Based on 1350 kWh per year. Adjust the price per kWh to match your latest electricity bill for an exact figure.
The number that matters most is your own electricity rate. Rates range from under 11¢ per kWh in some regions to over 30¢ in others, so the same home sauna can cost two or three times as much depending on where you live. Enter your exact rate in the calculator above to get a figure tailored to your bill.
As a wellness device, the home sauna sits in the middle of most household energy budgets. The number that moves your bill is total run time, so the usage hours in the calculator above matter as much as the wattage.
At 4500 watts, the home sauna is a high-draw appliance — the kind that can briefly become the single biggest load in your home while it runs. On a time-of-use tariff, shifting it to off-peak hours is often the easiest way to cut its cost without using it any less.
Over a full year this home sauna uses about 1350 kWh of electricity and is responsible for roughly 540 kg of CO₂ emissions on an average grid. Since it is used only part of the year, your real footprint scales with the season — the annual figure assumes a typical usage pattern.
To put the draw in everyday terms, one hour of running this home sauna uses about as much electricity as charging a smartphone 375 times. It is a rough comparison, but it makes an abstract wattage figure easier to picture.
If this home sauna is one you use daily, even small efficiency gains compound. Cutting its usage or wattage by 20% would save around $45.90 every year — money that an efficient replacement can recover over its lifetime.
Frequently asked questions
- How much does it cost to run a home sauna per hour?
- At 4500 watts and a 17¢/kWh rate, a home sauna costs about $0.77 per hour to run.
- How much electricity does a home sauna use per month?
- Running 1.5 hours a day, a home sauna uses roughly 112.5 kWh per month, costing about $19.13.
- How many kWh does a home sauna use per year?
- Used 1.5 hours a day for 200 days a year, a home sauna consumes about 1350 kWh annually — that is the figure your electricity rate is multiplied by to get the $229.50 yearly cost.
- Is a home sauna expensive to run?
- Yes — at around $229.50 per year, a home sauna is one of the more costly appliances to run, so efficiency upgrades pay off quickly.
- How much CO₂ does a home sauna produce?
- On an average grid, a home sauna used this much is responsible for roughly 540 kg of CO₂ per year. The exact figure depends on how clean your local electricity supply is.
- How can I reduce my home sauna running costs?
- Use it during off-peak hours if your utility offers time-of-use pricing, reduce daily run time, and consider an ENERGY STAR rated home sauna, which uses less power for the same job.