WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

Whirlpool WRT138FFD

The Whirlpool WRT138FFD never switches off, and its certified 370 kWh a year works out to about $70 on a U.S.-average electric bill — roughly $5.81 a month for an average continuous draw of 42 watts. Efficiency-wise it's unremarkable in a good way: within 2% of the median certified top-freezer refrigerator (rank 434 of 674). Where you live moves the bill from $46 a year in North Dakota to $172 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

Uses 10% less energy than the U.S. federal minimum

Dimensions 65.8" H × 29.5" W

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$70/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$5.81
Per day
19¢
Certified use
370 kWh/yr
Configuration
Top Freezer
Total capacity
18.3 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Whirlpool WRT138FFD (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

Whirlpool WRT138FFD: 370 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$64
Alaska27.4¢$101
Arizona15.5¢$57
Arkansas14.2¢$52
California35.3¢$130
Colorado16.5¢$61
Connecticut32.2¢$119
Delaware18.8¢$70
District of Columbia25.4¢$94
Florida15.4¢$57
Georgia15.4¢$57
Hawaiipriciest46.6¢$172
Idaho12.7¢$47
Illinois20.5¢$76
Indiana17.9¢$66
Iowa13.9¢$51
Kansas15.8¢$58
Kentucky15.0¢$56
Louisiana14.4¢$53
Maine28.4¢$105
Maryland22.1¢$82
Massachusetts29.4¢$109
Michigan21.4¢$79
Minnesota16.4¢$61
Mississippi16.8¢$62
Missouri14.0¢$52
Montana13.9¢$51
Nebraska13.3¢$49
Nevada14.3¢$53
New Hampshire27.2¢$101
New Jersey23.5¢$87
New Mexico15.2¢$56
New York29.4¢$109
North Carolina16.3¢$60
North Dakotacheapest12.3¢$46
Ohio19.5¢$72
Oklahoma13.3¢$49
Oregon15.8¢$58
Pennsylvania21.5¢$79
Rhode Island28.3¢$105
South Carolina17.1¢$63
South Dakota14.5¢$54
Tennessee14.9¢$55
Texas17.0¢$63
Utah13.3¢$49
Vermont24.6¢$91
Virginia17.4¢$64
Washington14.4¢$53
West Virginia16.1¢$59
Wisconsin19.2¢$71
Wyoming14.7¢$54

Certified models closest in efficiency

top-freezer refrigerators within reach of 370 kWh/yr
ModelkWh/yr$/yr (US avg)
Amana ART348FFFmost efficient370$70
Whirlpool WRT138FZDmost efficient370$70
Whirlpool WRT148FZDmost efficient370$70
Conservator GRMH185Amost efficient369$69
ELEMENT ERT18CSEmost efficient369$69
ELEMENT ERT18CSEBmost efficient369$69

Run your own numbers

Your rate, your numbers

Per day
19¢
Per month
$5.81
Per year
$70

370 kWh/yr × 18.8¢/kWh = $70/yr

Prefilled with this model's certified 370 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures — refrigerators never get a day off.

Questions, answered with the data

How much electricity does the Whirlpool WRT138FFD use?
ENERGY STAR certifies the Whirlpool WRT138FFD at 370 kWh per year. The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures — refrigerators never get a day off.
How much does the Whirlpool WRT138FFD cost to run per month?
About $5.81 a month at the U.S. average residential rate (18.8¢/kWh) — 19¢ a day, or $70 a year. Your state's rate moves this up or down; see the table above.
Is the Whirlpool WRT138FFD energy efficient?
It uses 2% more electricity than the median certified top-freezer refrigerator. It also meets ENERGY STAR's Most Efficient criteria.
What does the Whirlpool WRT138FFD cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $46 a year in North Dakota (12.3¢/kWh) and $172 in Hawaii (46.6¢/kWh).
How many watts does the Whirlpool WRT138FFD draw on average?
Spread over a year of continuous operation, 370 kWh works out to an average draw of about 42 watts — like leaving a 42-watt bulb on 24/7.

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