WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Samsung RT18M62*3

Running around the clock, the Samsung RT18M62*3 uses a certified 448 kWh per year — about $82 at the U.S. average rate, or $6.85 a month, the equivalent of a steady 51-watt draw. Even among certified models it's on the thirsty end: 23% more electricity than the median top-freezer refrigerator, ranked 626 of 713. The same unit costs $59 a year in Nevada but $236 in Hawaii — electricity rates, not the appliance, make the difference. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

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

Dimensions 66.8" H × 28.7" W

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$82/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$6.85
Per day
23¢
Certified use
448 kWh/yr
Configuration
Top Freezer
Total capacity
17.6 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the Samsung RT18M62*3 (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Samsung RT18M62*3: 448 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$73
Alaska28.2¢$126
Arizona15.2¢$68
Arkansas14.1¢$63
California34.7¢$156
Colorado17.1¢$77
Connecticut24.3¢$109
Delaware19.3¢$86
District of Columbia24.4¢$109
Florida15.1¢$68
Georgia16.4¢$73
Hawaiipriciest52.7¢$236
Idaho14.4¢$64
Illinois19.9¢$89
Indiana17.5¢$78
Iowa15.9¢$71
Kansas15.7¢$70
Kentucky14.3¢$64
Louisiana13.5¢$60
Maine29.6¢$133
Maryland21.8¢$98
Massachusetts29.6¢$133
Michigan23.0¢$103
Minnesota17.5¢$78
Mississippi14.9¢$67
Missouri16.2¢$73
Montana15.1¢$68
Nebraska13.3¢$59
Nevadacheapest13.1¢$59
New Hampshire27.0¢$121
New Jersey24.9¢$112
New Mexico15.1¢$67
New York29.5¢$132
North Carolina14.7¢$66
North Dakota14.1¢$63
Ohio19.2¢$86
Oklahoma14.3¢$64
Oregon16.3¢$73
Pennsylvania21.7¢$97
Rhode Island29.2¢$131
South Carolina15.6¢$70
South Dakota15.4¢$69
Tennessee14.1¢$63
Texas15.9¢$71
Utah13.4¢$60
Vermont24.4¢$109
Virginia17.2¢$77
Washington14.9¢$67
West Virginia15.4¢$69
Wisconsin19.6¢$88
Wyoming15.2¢$68

Certified models closest in efficiency

top-freezer refrigerators within reach of 448 kWh/yr
ModelkWh/yr$/yr (US avg)
Conserv TMRI 180Smost efficient448$82
Kenmore 7231most efficient448$82
Kenmore 899.7231#32most efficient448$82
Premium Levella PRNIM18most efficient448$82
Samsung RT18M62*5most efficient448$82
VITARA VTFR1802EI*Emost efficient448$82

Run your own numbers

Your rate, your numbers

Per day
23¢
Per month
$6.85
Per year
$82

448 kWh/yr × 18.3¢/kWh = $82/yr

Prefilled with this model's certified 448 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 Samsung RT18M62*3 use?
ENERGY STAR certifies the Samsung RT18M62*3 at 448 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 Samsung RT18M62*3 cost to run per month?
About $6.85 a month at the U.S. average residential rate (18.3¢/kWh) — 23¢ a day, or $82 a year. Your state's rate moves this up or down; see the table above.
Is the Samsung RT18M62*3 energy efficient?
It uses 23% more electricity than the median certified top-freezer refrigerator, which puts it among the least efficient certified models. It also meets ENERGY STAR's Most Efficient criteria.
What does the Samsung RT18M62*3 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $59 a year in Nevada (13.1¢/kWh) and $236 in Hawaii (52.7¢/kWh).
How many watts does the Samsung RT18M62*3 draw on average?
Spread over a year of continuous operation, 448 kWh works out to an average draw of about 51 watts — like leaving a 51-watt bulb on 24/7.

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