WattCostCalc

How Much Does a 100-watt large chest freezer Cost to Run?

A 100-watt large chest freezer uses 0.1 kWh per hour and costs $0.018 per hour at $0.175/kWh. Used 24 hours a day, that is $0.42 per day, $12.60 per month and $153.30 per year.

$0.018 per hourat $0.175/kWh

Calculate your own cost

Hours per day:
$0.42per day
Per hour
$0.0180.1 kWh
Per day
$0.422.4 kWh
Per week
$2.9416.8 kWh
Per month (30 days)
$12.6072 kWh
Per year
$153.30876 kWh

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

People also ask

How much does a 100-watt large chest freezer cost per hour?

At $0.175/kWh, it costs $0.018 per hour. The maths: 100 W ÷ 1,000 = 0.1 kWh per hour, × $0.175 = $0.018.

How much does it cost per month?

Used 24 hours a day for 30 days, it costs about $12.60 per month and uses 72 kWh. Change the hours in the calculator above to match how you use it.

How many kWh does it use?

2.4 kWh per day, 72 kWh per month and 876 kWh per year at 24 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?

Keep the lid closed, maintain the seal and leave room for ventilation. 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 $7.20 and at 30¢ it is $21.60. 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 hour0.1 kWh$0.018$0.525$6.39
2 hours0.2 kWh$0.035$1.05$12.78
3 hours0.3 kWh$0.053$1.58$19.16
4 hours0.4 kWh$0.07$2.10$25.55
5 hours0.5 kWh$0.088$2.63$31.94
6 hours0.6 kWh$0.105$3.15$38.33
7 hours0.7 kWh$0.123$3.68$44.71
8 hours0.8 kWh$0.14$4.20$51.10
9 hours0.9 kWh$0.158$4.73$57.49
10 hours1 kWh$0.175$5.25$63.88
11 hours1.1 kWh$0.193$5.78$70.26
12 hours1.2 kWh$0.21$6.30$76.65
13 hours1.3 kWh$0.228$6.83$83.04
14 hours1.4 kWh$0.245$7.35$89.43
15 hours1.5 kWh$0.263$7.88$95.81
16 hours1.6 kWh$0.28$8.40$102.20
17 hours1.7 kWh$0.298$8.93$108.59
18 hours1.8 kWh$0.315$9.45$114.98
19 hours1.9 kWh$0.333$9.98$121.36
20 hours2 kWh$0.35$10.50$127.75
21 hours2.1 kWh$0.368$11.03$134.14
22 hours2.2 kWh$0.385$11.55$140.53
23 hours2.3 kWh$0.403$12.08$146.91
24 hours2.4 kWh$0.42$12.60$153.30

How we worked it out

  1. Energy per hour: 100 W ÷ 1,000 = 0.1 kWh
  2. Cost per hour: 0.1 kWh × $0.175 = $0.018
  3. Cost per day: × 24 hours = $0.42
  4. Month and year: × 30 days = $12.60, × 365 days = $153.30

What it costs in different places

Same 100-watt large chest freezer, 24 hours a day. Only the local electricity rate changes.

PlaceRate per kWhCost per month
United States$0.175$12.60
California$0.32$23.04
Texas$0.155$11.16
New York$0.25$18.00
Florida$0.155$11.16
Illinois$0.17$12.24
Pennsylvania$0.18$12.96
Ohio$0.17$12.24
Washington$0.115$8.28

About large chest freezer running costs

Large chest freezers cycle on and off, so rated compressor watts are not drawn continuously. Annual energy-label data is more accurate when available.

Typical sizes: 100 W, 150 W, 250 W, 350 W.

How to spend less: Keep the lid closed, maintain the seal and leave room for ventilation.

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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