Cost to Run a 700-watt dehumidifier for 10 hours
Running a 700-watt dehumidifier for 10 hours uses 7 kWh and costs $1.23 at $0.175/kWh. Do that every day and it adds up to $36.75 a month.
Calculate your own cost
- Per hour
- $0.1230.7 kWh
- Per day
- $1.237 kWh
- Per week
- $8.5849 kWh
- Per month (30 days)
- $36.75210 kWh
- Per year
- $447.132,555 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 $0.175/kWh, it costs $0.123 per hour. The maths: 700 W ÷ 1,000 = 0.7 kWh per hour, × $0.175 = $0.123.
How much does it cost per month?
Used 10 hours a day for 30 days, it costs about $36.75 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
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.7 kWh | $0.123 | $3.68 | $44.71 |
| 2 hours | 1.4 kWh | $0.245 | $7.35 | $89.43 |
| 3 hours | 2.1 kWh | $0.368 | $11.03 | $134.14 |
| 4 hours | 2.8 kWh | $0.49 | $14.70 | $178.85 |
| 5 hours | 3.5 kWh | $0.613 | $18.38 | $223.56 |
| 6 hours | 4.2 kWh | $0.735 | $22.05 | $268.28 |
| 7 hours | 4.9 kWh | $0.858 | $25.73 | $312.99 |
| 8 hours | 5.6 kWh | $0.98 | $29.40 | $357.70 |
| 9 hours | 6.3 kWh | $1.10 | $33.08 | $402.41 |
| 10 hours | 7 kWh | $1.23 | $36.75 | $447.13 |
| 11 hours | 7.7 kWh | $1.35 | $40.43 | $491.84 |
| 12 hours | 8.4 kWh | $1.47 | $44.10 | $536.55 |
| 13 hours | 9.1 kWh | $1.59 | $47.78 | $581.26 |
| 14 hours | 9.8 kWh | $1.72 | $51.45 | $625.98 |
| 15 hours | 10.5 kWh | $1.84 | $55.13 | $670.69 |
| 16 hours | 11.2 kWh | $1.96 | $58.80 | $715.40 |
| 17 hours | 11.9 kWh | $2.08 | $62.48 | $760.11 |
| 18 hours | 12.6 kWh | $2.21 | $66.15 | $804.83 |
| 19 hours | 13.3 kWh | $2.33 | $69.83 | $849.54 |
| 20 hours | 14 kWh | $2.45 | $73.50 | $894.25 |
| 21 hours | 14.7 kWh | $2.57 | $77.18 | $938.96 |
| 22 hours | 15.4 kWh | $2.70 | $80.85 | $983.68 |
| 23 hours | 16.1 kWh | $2.82 | $84.53 | $1,028.39 |
| 24 hours | 16.8 kWh | $2.94 | $88.20 | $1,073.10 |
How we worked it out
- Energy per hour: 700 W ÷ 1,000 = 0.7 kWh
- Cost per hour: 0.7 kWh × $0.175 = $0.123
- Cost per day: × 10 hours = $1.23
- Month and year: × 30 days = $36.75, × 365 days = $447.13
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. 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.