Cost to Run a 3,000-watt hot tub for 3 hours in California
Running a 3,000-watt hot tub for 3 hours uses 9 kWh and costs $2.88 at $0.32/kWh in California. Do that every day and it adds up to $86.40 a month.
Calculate your own cost
- Per hour
- $0.963 kWh
- Per day
- $2.889 kWh
- Per week
- $20.1663 kWh
- Per month (30 days)
- $86.40270 kWh
- Per year
- $1,051.203,285 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 3,000-watt hot tub cost per hour?
At $0.32/kWh, it costs $0.96 per hour. The maths: 3,000 W ÷ 1,000 = 3 kWh per hour, × $0.32 = $0.96.
How much does it cost per month?
Used 3 hours a day for 30 days, it costs about $86.40 per month and uses 270 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
9 kWh per day, 270 kWh per month and 3,285 kWh per year at 3 hours a day. A kWh is one kilowatt (1,000 W) used for one hour. It is the unit on your electricity bill.
How can I lower the cost?
Use a well-fitting insulated cover and lower the temperature a couple of degrees. Check your bill for the exact rate and enter it above.
Does my electricity rate change the answer?
Yes, a lot. At 10¢ per kWh the monthly cost is $27.00 and at 30¢ it is $81.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in California
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 3 kWh | $0.96 | $28.80 | $350.40 |
| 2 hours | 6 kWh | $1.92 | $57.60 | $700.80 |
| 3 hours | 9 kWh | $2.88 | $86.40 | $1,051.20 |
| 4 hours | 12 kWh | $3.84 | $115.20 | $1,401.60 |
| 5 hours | 15 kWh | $4.80 | $144.00 | $1,752.00 |
| 6 hours | 18 kWh | $5.76 | $172.80 | $2,102.40 |
| 7 hours | 21 kWh | $6.72 | $201.60 | $2,452.80 |
| 8 hours | 24 kWh | $7.68 | $230.40 | $2,803.20 |
| 9 hours | 27 kWh | $8.64 | $259.20 | $3,153.60 |
| 10 hours | 30 kWh | $9.60 | $288.00 | $3,504.00 |
| 11 hours | 33 kWh | $10.56 | $316.80 | $3,854.40 |
| 12 hours | 36 kWh | $11.52 | $345.60 | $4,204.80 |
| 13 hours | 39 kWh | $12.48 | $374.40 | $4,555.20 |
| 14 hours | 42 kWh | $13.44 | $403.20 | $4,905.60 |
| 15 hours | 45 kWh | $14.40 | $432.00 | $5,256.00 |
| 16 hours | 48 kWh | $15.36 | $460.80 | $5,606.40 |
| 17 hours | 51 kWh | $16.32 | $489.60 | $5,956.80 |
| 18 hours | 54 kWh | $17.28 | $518.40 | $6,307.20 |
| 19 hours | 57 kWh | $18.24 | $547.20 | $6,657.60 |
| 20 hours | 60 kWh | $19.20 | $576.00 | $7,008.00 |
| 21 hours | 63 kWh | $20.16 | $604.80 | $7,358.40 |
| 22 hours | 66 kWh | $21.12 | $633.60 | $7,708.80 |
| 23 hours | 69 kWh | $22.08 | $662.40 | $8,059.20 |
| 24 hours | 72 kWh | $23.04 | $691.20 | $8,409.60 |
How we worked it out
- Energy per hour: 3,000 W ÷ 1,000 = 3 kWh
- Cost per hour: 3 kWh × $0.32 = $0.96
- Cost per day: × 3 hours = $2.88
- Month and year: × 30 days = $86.40, × 365 days = $1,051.20
California electricity prices
California pays about $0.32 per kWh, which is 83% higher than the US average of $0.175. The same hot tub would cost $47.25 a month at the national average.
What it costs in different places
Same 3,000-watt hot tub, 3 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $47.25 |
| California | $0.32 | $86.40 |
| Texas | $0.155 | $41.85 |
| New York | $0.25 | $67.50 |
| Florida | $0.155 | $41.85 |
| Illinois | $0.17 | $45.90 |
| Pennsylvania | $0.18 | $48.60 |
| Ohio | $0.17 | $45.90 |
| Washington | $0.115 | $31.05 |
About hot tub running costs
Hot tubs spend most of their power heating water, with a pump and filter running in cycles.
Typical sizes: 1,500 W, 3,000 W, 4,000 W, 5,500 W.
How to spend less: Use a well-fitting insulated cover and lower the temperature a couple of degrees.
What this estimate assumes
- The appliance draws its full stated wattage the whole time it is on. Real units with a thermostat cycle off and cost less.
- Wattage is the typical label value, not a measured value. Check the label on your own appliance.
- The rate is an approximate residential average in California. Your bill may include fixed fees, tiers or time-of-use pricing. Edit the rate above.
- A month is 30 days and a year is 365 days.