How Much Does a 1,000-watt ductless mini split Cost to Run in Washington?
A 1,000-watt ductless mini split uses 1 kWh per hour and costs $0.115 per hour at $0.115/kWh in Washington. Used 8 hours a day, that is $0.92 per day, $27.60 per month and $335.80 per year.
Calculate your own cost
- Per hour
- $0.1151 kWh
- Per day
- $0.928 kWh
- Per week
- $6.4456 kWh
- Per month (30 days)
- $27.60240 kWh
- Per year
- $335.802,920 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 1,000-watt ductless mini split cost per hour?
At $0.115/kWh, it costs $0.115 per hour. The maths: 1,000 W ÷ 1,000 = 1 kWh per hour, × $0.115 = $0.115.
How much does it cost per month?
Used 8 hours a day for 30 days, it costs about $27.60 per month and uses 240 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
8 kWh per day, 240 kWh per month and 2,920 kWh per year at 8 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?
Clean indoor filters and set a steady temperature instead of frequent large changes. 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 $24.00 and at 30¢ it is $72.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in Washington
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 1 kWh | $0.115 | $3.45 | $41.98 |
| 2 hours | 2 kWh | $0.23 | $6.90 | $83.95 |
| 3 hours | 3 kWh | $0.345 | $10.35 | $125.93 |
| 4 hours | 4 kWh | $0.46 | $13.80 | $167.90 |
| 5 hours | 5 kWh | $0.575 | $17.25 | $209.88 |
| 6 hours | 6 kWh | $0.69 | $20.70 | $251.85 |
| 7 hours | 7 kWh | $0.805 | $24.15 | $293.83 |
| 8 hours | 8 kWh | $0.92 | $27.60 | $335.80 |
| 9 hours | 9 kWh | $1.04 | $31.05 | $377.78 |
| 10 hours | 10 kWh | $1.15 | $34.50 | $419.75 |
| 11 hours | 11 kWh | $1.27 | $37.95 | $461.73 |
| 12 hours | 12 kWh | $1.38 | $41.40 | $503.70 |
| 13 hours | 13 kWh | $1.50 | $44.85 | $545.68 |
| 14 hours | 14 kWh | $1.61 | $48.30 | $587.65 |
| 15 hours | 15 kWh | $1.73 | $51.75 | $629.63 |
| 16 hours | 16 kWh | $1.84 | $55.20 | $671.60 |
| 17 hours | 17 kWh | $1.96 | $58.65 | $713.58 |
| 18 hours | 18 kWh | $2.07 | $62.10 | $755.55 |
| 19 hours | 19 kWh | $2.19 | $65.55 | $797.53 |
| 20 hours | 20 kWh | $2.30 | $69.00 | $839.50 |
| 21 hours | 21 kWh | $2.42 | $72.45 | $881.48 |
| 22 hours | 22 kWh | $2.53 | $75.90 | $923.45 |
| 23 hours | 23 kWh | $2.65 | $79.35 | $965.43 |
| 24 hours | 24 kWh | $2.76 | $82.80 | $1,007.40 |
How we worked it out
- Energy per hour: 1,000 W ÷ 1,000 = 1 kWh
- Cost per hour: 1 kWh × $0.115 = $0.115
- Cost per day: × 8 hours = $0.92
- Month and year: × 30 days = $27.60, × 365 days = $335.80
Washington electricity prices
Washington pays about $0.115 per kWh, which is 34% lower than the US average of $0.175. The same ductless mini split would cost $42.00 a month at the national average.
What it costs in different places
Same 1,000-watt ductless mini split, 8 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $42.00 |
| California | $0.32 | $76.80 |
| Texas | $0.155 | $37.20 |
| New York | $0.25 | $60.00 |
| Florida | $0.155 | $37.20 |
| Illinois | $0.17 | $40.80 |
| Pennsylvania | $0.18 | $43.20 |
| Ohio | $0.17 | $40.80 |
| Washington | $0.115 | $27.60 |
About ductless mini split running costs
Mini-split power varies widely with capacity, efficiency and outdoor conditions. Rated input watts or the energy label gives a better estimate than cooling BTUs alone.
Typical sizes: 700 W, 1,000 W, 1,500 W, 2,500 W.
How to spend less: Clean indoor filters and set a steady temperature instead of frequent large changes.
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 Washington. 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.