WattCostCalc

Cost to Run a 700-watt dehumidifier for 10 hours in Pennsylvania

Running a 700-watt dehumidifier for 10 hours uses 7 kWh and costs $1.26 at $0.18/kWh in Pennsylvania. Do that every day and it adds up to $37.80 a month.

$1.26 for 10 hoursat $0.18/kWh

Calculate your own cost

Hours per day:
$1.26per day
Per hour
$0.1260.7 kWh
Per day
$1.267 kWh
Per week
$8.8249 kWh
Per month (30 days)
$37.80210 kWh
Per year
$459.902,555 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 $0.18/kWh, it costs $0.126 per hour. The maths: 700 W ÷ 1,000 = 0.7 kWh per hour, × $0.18 = $0.126.

How much does it cost per month?

Used 10 hours a day for 30 days, it costs about $37.80 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 Pennsylvania

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour0.7 kWh$0.126$3.78$45.99
2 hours1.4 kWh$0.252$7.56$91.98
3 hours2.1 kWh$0.378$11.34$137.97
4 hours2.8 kWh$0.504$15.12$183.96
5 hours3.5 kWh$0.63$18.90$229.95
6 hours4.2 kWh$0.756$22.68$275.94
7 hours4.9 kWh$0.882$26.46$321.93
8 hours5.6 kWh$1.01$30.24$367.92
9 hours6.3 kWh$1.13$34.02$413.91
10 hours7 kWh$1.26$37.80$459.90
11 hours7.7 kWh$1.39$41.58$505.89
12 hours8.4 kWh$1.51$45.36$551.88
13 hours9.1 kWh$1.64$49.14$597.87
14 hours9.8 kWh$1.76$52.92$643.86
15 hours10.5 kWh$1.89$56.70$689.85
16 hours11.2 kWh$2.02$60.48$735.84
17 hours11.9 kWh$2.14$64.26$781.83
18 hours12.6 kWh$2.27$68.04$827.82
19 hours13.3 kWh$2.39$71.82$873.81
20 hours14 kWh$2.52$75.60$919.80
21 hours14.7 kWh$2.65$79.38$965.79
22 hours15.4 kWh$2.77$83.16$1,011.78
23 hours16.1 kWh$2.90$86.94$1,057.77
24 hours16.8 kWh$3.02$90.72$1,103.76

How we worked it out

  1. Energy per hour: 700 W ÷ 1,000 = 0.7 kWh
  2. Cost per hour: 0.7 kWh × $0.18 = $0.126
  3. Cost per day: × 10 hours = $1.26
  4. Month and year: × 30 days = $37.80, × 365 days = $459.90

Pennsylvania electricity prices

Pennsylvania pays about $0.18 per kWh, which is 3% higher 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.

PlaceRate per kWhCost 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 Pennsylvania. 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.

Read the full calculation methodology

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