WattCostCalc

Cost to Run a 3,000-watt heat pump for 1 hour

Running a 3,000-watt heat pump for 1 hour uses 3 kWh and costs $0.525 at $0.175/kWh. Do that every day and it adds up to $15.75 a month.

$0.525 for 1 hourat $0.175/kWh

Calculate your own cost

Hours per day:
$0.525per day
Per hour
$0.5253 kWh
Per day
$0.5253 kWh
Per week
$3.6821 kWh
Per month (30 days)
$15.7590 kWh
Per year
$191.631,095 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 heat pump cost per hour?

At $0.175/kWh, it costs $0.525 per hour. The maths: 3,000 W ÷ 1,000 = 3 kWh per hour, × $0.175 = $0.525.

How much does it cost per month?

Used 1 hours a day for 30 days, it costs about $15.75 per month and uses 90 kWh. Change the hours in the calculator above to match how you use it.

How many kWh does it use?

3 kWh per day, 90 kWh per month and 1,095 kWh per year at 1 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 filters and keep outdoor coils clear; use the equipment label for a better estimate. 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 $9.00 and at 30¢ it is $27.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.

Cost by hours of use

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour3 kWh$0.525$15.75$191.63
2 hours6 kWh$1.05$31.50$383.25
3 hours9 kWh$1.58$47.25$574.88
4 hours12 kWh$2.10$63.00$766.50
5 hours15 kWh$2.63$78.75$958.13
6 hours18 kWh$3.15$94.50$1,149.75
7 hours21 kWh$3.68$110.25$1,341.38
8 hours24 kWh$4.20$126.00$1,533.00
9 hours27 kWh$4.73$141.75$1,724.63
10 hours30 kWh$5.25$157.50$1,916.25
11 hours33 kWh$5.78$173.25$2,107.88
12 hours36 kWh$6.30$189.00$2,299.50
13 hours39 kWh$6.83$204.75$2,491.13
14 hours42 kWh$7.35$220.50$2,682.75
15 hours45 kWh$7.88$236.25$2,874.38
16 hours48 kWh$8.40$252.00$3,066.00
17 hours51 kWh$8.93$267.75$3,257.63
18 hours54 kWh$9.45$283.50$3,449.25
19 hours57 kWh$9.98$299.25$3,640.88
20 hours60 kWh$10.50$315.00$3,832.50
21 hours63 kWh$11.03$330.75$4,024.13
22 hours66 kWh$11.55$346.50$4,215.75
23 hours69 kWh$12.08$362.25$4,407.38
24 hours72 kWh$12.60$378.00$4,599.00

How we worked it out

  1. Energy per hour: 3,000 W ÷ 1,000 = 3 kWh
  2. Cost per hour: 3 kWh × $0.175 = $0.525
  3. Cost per day: × 1 hours = $0.525
  4. Month and year: × 30 days = $15.75, × 365 days = $191.63

What it costs in different places

Same 3,000-watt heat pump, 1 hours a day. Only the local electricity rate changes.

PlaceRate per kWhCost per month
United States$0.175$15.75
California$0.32$28.80
Texas$0.155$13.95
New York$0.25$22.50
Florida$0.155$13.95
Illinois$0.17$15.30
Pennsylvania$0.18$16.20
Ohio$0.17$15.30
Washington$0.115$10.35

About heat pump running costs

A heat pump moves heat rather than making all heat with resistance elements. Its electrical draw varies with outdoor temperature and system size.

Typical sizes: 1,500 W, 2,000 W, 3,000 W, 4,000 W.

How to spend less: Clean filters and keep outdoor coils clear; use the equipment label for a better estimate.

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.

Read the full calculation methodology

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