SaunaCosts

Sauna running cost in Washington

Washington residential electricity runs 14.95 cents per kWh as of May 2026, which is 19 percent below the national average of 18.44 cents. That makes it the 15th cheapest of the 51 states and territories the EIA reports.

What it costs here

Running cost is heater power times session length times your rate. Every figure below uses Washington's own rate and a 1 hour session.

Heater powerPer sessionPer month at 12 sessionsPer year
3 kW$0.45$5.38$65
4.5 kW$0.67$8.07$97
6 kW$0.90$10.76$129
8 kW$1.20$14.35$172
9 kW$1.35$16.15$194

By how often you use it

A 6 kW sauna in Washington, by weekly habit:

UsagePer monthPer year
2 sessions a week$7.77$93
3 sessions a week$11.66$140
5 sessions a week$19.43$233

Same arithmetic as the running cost calculator, which takes your exact heater power and session length.

How Washington compares

A 6 kW sauna run 12 times a month costs $129 a year in Washington. The same sauna costs $107 in Idaho, the cheapest state at 12.35 cents, and $449 in Hawaii, the most expensive at 52.00 cents. Rates come from the U.S. Energy Information Administration and are refreshed on the schedule described on the methodology page.

Running cost in every state

Running cost questions

How much does it cost to run a sauna in Washington?
At 14.95 cents per kWh, a 6 kW sauna costs $0.90 for a 1 hour session, $10.76 a month at 12 sessions, and $129 a year. Smaller and larger heaters scale from there: 3 kW costs $0.45 a session and 9 kW costs $1.35.
Is electricity expensive in Washington?
Washington residential electricity is 14.95 cents per kWh, 19 percent below the national average of 18.44 cents. That ranks it 15th of the 51 states and territories the EIA reports, counting from the cheapest.
How does that compare with the cheapest and most expensive states?
The same 6 kW sauna, run 12 times a month, costs $129 a year in Washington, $107 in Idaho and $449 in Hawaii. The spread between the cheapest and most expensive state is $342 a year on an identical sauna.
Where does this rate come from?
The U.S. Energy Information Administration's residential electricity price series, for May 2026. It is an average across the state, so your own utility's rate and any time of use plan will differ. Sourcing and refresh cadence are described on the methodology page.

Prices and specifications verified July 25, 2026, and re-checked weekly after that. How these numbers are checked.

Free guide: sizing and budgeting a home sauna

A fill-in worksheet covering room sizing math, the electrical checklist, indoor vs outdoor decisions, a full cost worksheet, and ten questions to ask the dealer.