How Much Electricity Does a Refrigerator Use?

A refrigerator is plugged in 8,760 hours a year and running for maybe a third of them. That gap is the single reason most refrigerator cost estimates on the internet are wrong by a factor of three. The compressor is what draws power, and the compressor only runs when the thermostat asks it to.

A modern refrigerator draws about 150 W while the compressor is running, and the compressor typically runs six to nine hours out of every 24. That works out to roughly $0.22 a day at 18.44ยข per kWh, or $6.64 a month and $80.77 a year. In kWh terms that is around 440 kWh annually, which lines up with the EnergyGuide label on most current models.

Calculate it for your own refrigerator

Change any box. The result updates as you type.

W
hours
USD/kWh
Cost per month
Per hour
Per day
Per year
kWh per day

Planning estimate. The rate box is prefilled with a regional average; the figure on your own bill is the one that matters. Power is draw while running, not while switched on.

Refrigerator at 150 W and 18.44¢ per kWh
Run timeElectricity usedCost
Per hour of runtime0.15 kWh$0.03
Per day at 8 hours1.20 kWh$0.22
Per week8.40 kWh$1.55
Per 30-day month36.00 kWh$6.64
Per year of that pattern438.00 kWh$80.77

Use the EnergyGuide label, not the nameplate

Ignore the nameplate wattage on the back of the unit. That figure describes peak draw, and the fridge spends most of its life nowhere near it. What you want is the yellow EnergyGuide sticker, which gives estimated kWh per year based on standardised testing. Divide that by 365 for daily kWh, multiply by your rate, and you have a genuinely reliable number.

Typical figures worth knowing. A current Energy Star top-freezer model lands between 350 and 450 kWh per year. A large French-door unit with ice and water in the door runs 550 to 750. A refrigerator built before 2001 can easily use 1,200 kWh a year, which at current rates is over 220 dollars annually for the same box of cold air.

Cost by wattage at 18.44¢ per kWh
Rated powerPer hourPer day (8 h)Per month
100 W$0.02$0.15$4.43
120 W$0.02$0.18$5.31
150 W$0.03$0.22$6.64
200 W$0.04$0.30$8.85
250 W$0.05$0.37$11.06

What actually makes a fridge run longer

Everything that makes the compressor run longer costs you money, and the list is short and boring:

  • Ambient temperature. A fridge in a 90 degree garage works far harder than the same fridge in a 70 degree kitchen. Garage refrigerators are the most expensive appliance most people forget they own.
  • Door seals. The dollar-bill test still works. Close the door on a bill; if it slides out without resistance, the gasket is not sealing and the compressor is making up the difference all day.
  • Setpoint. 37 to 40 degrees for the fridge and 0 for the freezer is what food safety requires. Colder than that is money spent on nothing.
  • Condenser coils. Dust on the coils behind or beneath the unit means heat cannot escape, so cycles run longer. Vacuuming them once a year is the highest-value maintenance on the appliance.
  • How full it is. A full fridge holds cold better than an empty one. A half-empty second fridge is the worst of both.

Cost by compressor runtime

The table below assumes 150 W and varies the compressor runtime, which is the number that actually differs between households. Six hours is a well-sited modern unit. Twelve is an older fridge, a hot room, or a bad gasket.

Cost by daily run time at 150 W
Hours per daykWh per dayPer dayPer 30 days
4 h0.60$0.11$3.32
6 h0.90$0.17$4.98
8 h1.20$0.22$6.64
10 h1.50$0.28$8.30
12 h1.80$0.33$9.96
16 h2.40$0.44$13.28
24 h3.60$0.66$19.92

Refrigerator running cost by state

Because a fridge runs every day of the year, it is one of the few appliances where the state rate difference compounds into serious money. The same refrigerator costs about three times more per year in Hawaii than in Idaho.

Refrigerator running cost by state, August 2026
StateRatePer hourPer dayPer month
Alabama16.77¢$0.03$0.20$6.04
Alaska28.23¢$0.04$0.34$10.16
Arizona15.23¢$0.02$0.18$5.48
Arkansas14.36¢$0.02$0.17$5.17
California33.25¢$0.05$0.40$11.97
Colorado16.16¢$0.02$0.19$5.82
Connecticut27.37¢$0.04$0.33$9.85
Delaware19.38¢$0.03$0.23$6.98
District of Columbia25.40¢$0.04$0.30$9.14
Florida15.17¢$0.02$0.18$5.46
Georgia15.84¢$0.02$0.19$5.70
Hawaii52.00¢$0.08$0.62$18.72
Idaho12.35¢$0.02$0.15$4.45
Illinois23.85¢$0.04$0.29$8.59
Indiana18.15¢$0.03$0.22$6.53
Iowa14.14¢$0.02$0.17$5.09
Kansas15.13¢$0.02$0.18$5.45
Kentucky14.98¢$0.02$0.18$5.39
Louisiana14.15¢$0.02$0.17$5.09
Maine28.63¢$0.04$0.34$10.31
Maryland21.77¢$0.03$0.26$7.84
Massachusetts28.82¢$0.04$0.35$10.38
Michigan22.01¢$0.03$0.26$7.92
Minnesota16.95¢$0.03$0.20$6.10
Mississippi16.16¢$0.02$0.19$5.82
Missouri13.68¢$0.02$0.16$4.92
Montana14.67¢$0.02$0.18$5.28
Nebraska13.59¢$0.02$0.16$4.89
Nevada13.60¢$0.02$0.16$4.90
New Hampshire27.33¢$0.04$0.33$9.84
New Jersey23.27¢$0.03$0.28$8.38
New Mexico14.12¢$0.02$0.17$5.08
New York29.93¢$0.04$0.36$10.77
North Carolina15.09¢$0.02$0.18$5.43
North Dakota13.61¢$0.02$0.16$4.90
Ohio19.52¢$0.03$0.23$7.03
Oklahoma13.38¢$0.02$0.16$4.82
Oregon16.27¢$0.02$0.20$5.86
Pennsylvania21.55¢$0.03$0.26$7.76
Rhode Island29.46¢$0.04$0.35$10.61
South Carolina16.18¢$0.02$0.19$5.82
South Dakota15.73¢$0.02$0.19$5.66
Tennessee14.47¢$0.02$0.17$5.21
Texas16.44¢$0.02$0.20$5.92
Utah12.96¢$0.02$0.16$4.67
Vermont24.89¢$0.04$0.30$8.96
Virginia17.61¢$0.03$0.21$6.34
Washington14.95¢$0.02$0.18$5.38
West Virginia16.80¢$0.03$0.20$6.05
Wisconsin19.74¢$0.03$0.24$7.11
Wyoming14.80¢$0.02$0.18$5.33

The old fridge in the garage

The second refrigerator in the garage or basement is worth a moment of honesty. It is usually the oldest unit in the house, sitting in the hottest or coldest room, running to keep drinks cold. At 1,000 kWh a year for a mid-1990s model in a warm garage, that is roughly 185 dollars annually at current rates.

Replacing a working appliance rarely pays back quickly, but a pre-2001 second fridge is the exception. Many utilities also run appliance recycling programmes that pay 50 to 100 dollars to haul the old one away, which shortens the payback considerably. Worth a search for your utility name and the word recycling before you buy anything.

What your rate changes

Nothing about the appliance, everything about the bill. Here is the same 150 W fridge at eight hours of compressor time a day across the range of rates people actually pay.

Refrigerator at 150 W across common electricity rates
Your ratePer hourPer day (8 h)Per monthPer year
10.00¢/kWh$0.02$0.12$3.60$43.80
13.00¢/kWh$0.02$0.16$4.68$56.94
15.00¢/kWh$0.02$0.18$5.40$65.70
18.44¢/kWh$0.03$0.22$6.64$80.77
22.00¢/kWh$0.03$0.26$7.92$96.36
26.00¢/kWh$0.04$0.31$9.36$114
30.00¢/kWh$0.05$0.36$10.80$131
35.00¢/kWh$0.05$0.42$12.60$153

How this compares to everything else you plug in

Per hour of runtime against the rest of the kitchen. The refrigerator looks cheap here, and per hour it is. It just never stops.

What an hour of runtime costs, compared
ApplianceTypical powerCost per hour
Refrigerator150 W$0.03
Chest freezer200 W$0.04
Dishwasher1,800 W$0.33
Microwave oven1,000 W$0.18
Electric oven2,400 W$0.44
Coffee maker900 W$0.17

Questions people actually ask

How many watts does a refrigerator use?
Around 150 W while the compressor runs, with a range of roughly 80 W for a compact unit to 250 W for a large French-door model. Startup surge is several times higher for a moment, which matters for generator and inverter sizing but not for your bill.
How much does it cost to run a refrigerator per month?
About $6.64 at the US average rate, assuming a modern unit using around 1.2 kWh a day. An older refrigerator can easily be double or triple that.
Does an empty fridge use more electricity?
Slightly, yes. Food and liquid hold their temperature, so a full fridge recovers faster when the door opens. The effect is real but small. It is not a reason to fill a fridge with water bottles unless it is nearly empty already.
Do refrigerators use more electricity as they get older?
Usually. Seals harden, insulation degrades and coils foul, all of which lengthen compressor cycles. The bigger factor is that efficiency standards have improved sharply, so a 1995 model was inefficient when new and has got worse since.
Is it worth unplugging a fridge when going on holiday?
Only for long absences and only if you empty it. For a week away, leave it running with the setpoint unchanged. Emptying, cleaning and unplugging for a month makes sense; doing it for a long weekend does not.
How much does a garage fridge cost to run?
Considerably more than the same unit indoors, because ambient heat drives longer compressor cycles. Budget 1.5 to 2 times the kitchen figure in a hot garage, and more if the unit predates 2001.

Related running costs

Running it on solar

A refrigerator uses 1.20 kWh a day, which needs about less than one standard 400 W panels. Full array, battery and inverter sizing is on how many solar panels to run a refrigerator.

Run the numbers on your own bill

Costs on this page use a national average residential rate of 18.44¢ per kWh (August 2026, EIA-derived state residential averages). Your own rate is printed on your electricity bill and is the number that actually matters. Every figure here is recalculated from one central rate setting, so these tables move when the national average moves.