WattCostCalc

Cost to Run a 750-watt appliance for 4 hours in Texas

Running a 750-watt appliance for 4 hours uses 3 kWh and costs $0.465 at $0.155/kWh in Texas. Do that every day and it adds up to $13.95 a month.

$0.465 for 4 hoursat $0.155/kWh

Calculate your own cost

Hours per day:
$0.465per day
Per hour
$0.1160.75 kWh
Per day
$0.4653 kWh
Per week
$3.2621 kWh
Per month (30 days)
$13.9590 kWh
Per year
$169.731,095 kWh

Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.

People also ask

How much does a 750-watt appliance cost per hour?

At $0.155/kWh, it costs $0.116 per hour. The maths: 750 W ÷ 1,000 = 0.75 kWh per hour, × $0.155 = $0.116.

How much does it cost per month?

Used 4 hours a day for 30 days, it costs about $13.95 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 4 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?

Use it for fewer hours, switch to a lower-wattage model, and check whether your utility offers cheaper off-peak rates. Enter your own rate above to see the effect.

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 in Texas

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour0.75 kWh$0.116$3.49$42.43
2 hours1.5 kWh$0.233$6.98$84.86
3 hours2.25 kWh$0.349$10.46$127.29
4 hours3 kWh$0.465$13.95$169.73
5 hours3.75 kWh$0.581$17.44$212.16
6 hours4.5 kWh$0.698$20.93$254.59
7 hours5.25 kWh$0.814$24.41$297.02
8 hours6 kWh$0.93$27.90$339.45
9 hours6.75 kWh$1.05$31.39$381.88
10 hours7.5 kWh$1.16$34.88$424.31
11 hours8.25 kWh$1.28$38.36$466.74
12 hours9 kWh$1.40$41.85$509.18
13 hours9.75 kWh$1.51$45.34$551.61
14 hours10.5 kWh$1.63$48.83$594.04
15 hours11.3 kWh$1.74$52.31$636.47
16 hours12 kWh$1.86$55.80$678.90
17 hours12.8 kWh$1.98$59.29$721.33
18 hours13.5 kWh$2.09$62.78$763.76
19 hours14.3 kWh$2.21$66.26$806.19
20 hours15 kWh$2.33$69.75$848.63
21 hours15.8 kWh$2.44$73.24$891.06
22 hours16.5 kWh$2.56$76.73$933.49
23 hours17.3 kWh$2.67$80.21$975.92
24 hours18 kWh$2.79$83.70$1,018.35

How we worked it out

  1. Energy per hour: 750 W ÷ 1,000 = 0.75 kWh
  2. Cost per hour: 0.75 kWh × $0.155 = $0.116
  3. Cost per day: × 4 hours = $0.465
  4. Month and year: × 30 days = $13.95, × 365 days = $169.73

Texas electricity prices

Texas pays about $0.155 per kWh, which is 11% lower than the US average of $0.175. The same appliance would cost $15.75 a month at the national average.

What it costs in different places

Same 750-watt appliance, 4 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

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 Texas. 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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