Cost to Run a 700-watt dehumidifier for 10 hours in Washington
Running a 700-watt dehumidifier for 10 hours uses 7 kWh and costs $0.805 at $0.115/kWh in Washington. Do that every day and it adds up to $24.15 a month.
Calculate your own cost
- Per hour
- $0.0810.7 kWh
- Per day
- $0.8057 kWh
- Per week
- $5.6449 kWh
- Per month (30 days)
- $24.15210 kWh
- Per year
- $293.832,555 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 700-watt dehumidifier cost per hour?
At $0.115/kWh, it costs $0.081 per hour. The maths: 700 W ÷ 1,000 = 0.7 kWh per hour, × $0.115 = $0.081.
How much does it cost per month?
Used 10 hours a day for 30 days, it costs about $24.15 per month and uses 210 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
7 kWh per day, 210 kWh per month and 2,555 kWh per year at 10 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?
Set the target to 45 to 50% humidity. Lower than that wastes electricity. 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 $21.00 and at 30¢ it is $63.00. 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 | 0.7 kWh | $0.081 | $2.42 | $29.38 |
| 2 hours | 1.4 kWh | $0.161 | $4.83 | $58.77 |
| 3 hours | 2.1 kWh | $0.242 | $7.25 | $88.15 |
| 4 hours | 2.8 kWh | $0.322 | $9.66 | $117.53 |
| 5 hours | 3.5 kWh | $0.403 | $12.08 | $146.91 |
| 6 hours | 4.2 kWh | $0.483 | $14.49 | $176.30 |
| 7 hours | 4.9 kWh | $0.564 | $16.91 | $205.68 |
| 8 hours | 5.6 kWh | $0.644 | $19.32 | $235.06 |
| 9 hours | 6.3 kWh | $0.725 | $21.74 | $264.44 |
| 10 hours | 7 kWh | $0.805 | $24.15 | $293.83 |
| 11 hours | 7.7 kWh | $0.886 | $26.57 | $323.21 |
| 12 hours | 8.4 kWh | $0.966 | $28.98 | $352.59 |
| 13 hours | 9.1 kWh | $1.05 | $31.40 | $381.97 |
| 14 hours | 9.8 kWh | $1.13 | $33.81 | $411.36 |
| 15 hours | 10.5 kWh | $1.21 | $36.23 | $440.74 |
| 16 hours | 11.2 kWh | $1.29 | $38.64 | $470.12 |
| 17 hours | 11.9 kWh | $1.37 | $41.06 | $499.50 |
| 18 hours | 12.6 kWh | $1.45 | $43.47 | $528.89 |
| 19 hours | 13.3 kWh | $1.53 | $45.89 | $558.27 |
| 20 hours | 14 kWh | $1.61 | $48.30 | $587.65 |
| 21 hours | 14.7 kWh | $1.69 | $50.72 | $617.03 |
| 22 hours | 15.4 kWh | $1.77 | $53.13 | $646.42 |
| 23 hours | 16.1 kWh | $1.85 | $55.55 | $675.80 |
| 24 hours | 16.8 kWh | $1.93 | $57.96 | $705.18 |
How we worked it out
- Energy per hour: 700 W ÷ 1,000 = 0.7 kWh
- Cost per hour: 0.7 kWh × $0.115 = $0.081
- Cost per day: × 10 hours = $0.805
- Month and year: × 30 days = $24.15, × 365 days = $293.83
Washington electricity prices
Washington pays about $0.115 per kWh, which is 34% lower than the US average of $0.175. The same dehumidifier would cost $36.75 a month at the national average.
What it costs in different places
Same 700-watt dehumidifier, 10 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $36.75 |
| California | $0.32 | $67.20 |
| Texas | $0.155 | $32.55 |
| New York | $0.25 | $52.50 |
| Florida | $0.155 | $32.55 |
| Illinois | $0.17 | $35.70 |
| Pennsylvania | $0.18 | $37.80 |
| Ohio | $0.17 | $35.70 |
| Washington | $0.115 | $24.15 |
About dehumidifier running costs
A dehumidifier cycles on and off with a humidistat, so real running time is well under 24 hours.
Typical sizes: 250 W, 400 W, 500 W, 700 W.
How to spend less: Set the target to 45 to 50% humidity. Lower than that wastes electricity.
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.