WattCostCalc

Cost to Run a 450-watt bread maker for 20 hours in Illinois

Running a 450-watt bread maker for 20 hours uses 9 kWh and costs $1.53 at $0.17/kWh in Illinois. Do that every day and it adds up to $45.90 a month.

$1.53 for 20 hoursat $0.17/kWh

Calculate your own cost

Hours per day:
$1.53per day
Per hour
$0.0770.45 kWh
Per day
$1.539 kWh
Per week
$10.7163 kWh
Per month (30 days)
$45.90270 kWh
Per year
$558.453,285 kWh

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

People also ask

How much does a 450-watt bread maker cost per hour?

At $0.17/kWh, it costs $0.077 per hour. The maths: 450 W ÷ 1,000 = 0.45 kWh per hour, × $0.17 = $0.077.

How much does it cost per month?

Used 20 hours a day for 30 days, it costs about $45.90 per month and uses 270 kWh. Change the hours in the calculator above to match how you use it.

How many kWh does it use?

9 kWh per day, 270 kWh per month and 3,285 kWh per year at 20 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 the correct loaf size and avoid leaving the keep-warm mode on. 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 $27.00 and at 30¢ it is $81.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.

Cost by hours of use in Illinois

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour0.45 kWh$0.077$2.30$27.92
2 hours0.9 kWh$0.153$4.59$55.85
3 hours1.35 kWh$0.23$6.89$83.77
4 hours1.8 kWh$0.306$9.18$111.69
5 hours2.25 kWh$0.383$11.48$139.61
6 hours2.7 kWh$0.459$13.77$167.54
7 hours3.15 kWh$0.536$16.07$195.46
8 hours3.6 kWh$0.612$18.36$223.38
9 hours4.05 kWh$0.689$20.66$251.30
10 hours4.5 kWh$0.765$22.95$279.23
11 hours4.95 kWh$0.842$25.25$307.15
12 hours5.4 kWh$0.918$27.54$335.07
13 hours5.85 kWh$0.995$29.84$362.99
14 hours6.3 kWh$1.07$32.13$390.92
15 hours6.75 kWh$1.15$34.43$418.84
16 hours7.2 kWh$1.22$36.72$446.76
17 hours7.65 kWh$1.30$39.02$474.68
18 hours8.1 kWh$1.38$41.31$502.61
19 hours8.55 kWh$1.45$43.61$530.53
20 hours9 kWh$1.53$45.90$558.45
21 hours9.45 kWh$1.61$48.20$586.37
22 hours9.9 kWh$1.68$50.49$614.30
23 hours10.4 kWh$1.76$52.79$642.22
24 hours10.8 kWh$1.84$55.08$670.14

How we worked it out

  1. Energy per hour: 450 W ÷ 1,000 = 0.45 kWh
  2. Cost per hour: 0.45 kWh × $0.17 = $0.077
  3. Cost per day: × 20 hours = $1.53
  4. Month and year: × 30 days = $45.90, × 365 days = $558.45

Illinois electricity prices

Illinois pays about $0.17 per kWh, which is 3% lower than the US average of $0.175. The same bread maker would cost $47.25 a month at the national average.

What it costs in different places

Same 450-watt bread maker, 20 hours a day. Only the local electricity rate changes.

PlaceRate per kWhCost per month
United States$0.175$47.25
California$0.32$86.40
Texas$0.155$41.85
New York$0.25$67.50
Florida$0.155$41.85
Illinois$0.17$45.90
Pennsylvania$0.18$48.60
Ohio$0.17$45.90
Washington$0.115$31.05

About bread maker running costs

Bread makers run a motor and heating element over a multi-hour cycle. The heating element dominates electricity use.

Typical sizes: 450 W, 600 W, 800 W, 1,000 W.

How to spend less: Use the correct loaf size and avoid leaving the keep-warm mode on.

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 Illinois. 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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