WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

Samsung RT70F18LR

The Samsung RT70F18LR never switches off, and its certified 343 kWh a year works out to about $65 on a U.S.-average electric bill — roughly $5.38 a month for an average continuous draw of 39 watts. Efficiency-wise it's unremarkable in a good way: within 6% of the median certified top-freezer refrigerator (rank 240 of 674). The same unit costs $42 a year in North Dakota but $160 in Hawaii — electricity rates, not the appliance, make the difference. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

Uses 15% less energy than the U.S. federal minimum

Dimensions 66.9" H × 27.6" W

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

$65/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$5.38
Per day
18¢
Certified use
343 kWh/yr
Configuration
Top Freezer
Total capacity
17.5 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Samsung RT70F18LR (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

Samsung RT70F18LR: 343 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$60
Alaska27.4¢$94
Arizona15.5¢$53
Arkansas14.2¢$49
California35.3¢$121
Colorado16.5¢$57
Connecticut32.2¢$111
Delaware18.8¢$64
District of Columbia25.4¢$87
Florida15.4¢$53
Georgia15.4¢$53
Hawaiipriciest46.6¢$160
Idaho12.7¢$44
Illinois20.5¢$70
Indiana17.9¢$61
Iowa13.9¢$48
Kansas15.8¢$54
Kentucky15.0¢$52
Louisiana14.4¢$50
Maine28.4¢$97
Maryland22.1¢$76
Massachusetts29.4¢$101
Michigan21.4¢$73
Minnesota16.4¢$56
Mississippi16.8¢$57
Missouri14.0¢$48
Montana13.9¢$48
Nebraska13.3¢$46
Nevada14.3¢$49
New Hampshire27.2¢$93
New Jersey23.5¢$81
New Mexico15.2¢$52
New York29.4¢$101
North Carolina16.3¢$56
North Dakotacheapest12.3¢$42
Ohio19.5¢$67
Oklahoma13.3¢$46
Oregon15.8¢$54
Pennsylvania21.5¢$74
Rhode Island28.3¢$97
South Carolina17.1¢$59
South Dakota14.5¢$50
Tennessee14.9¢$51
Texas17.0¢$58
Utah13.3¢$46
Vermont24.6¢$84
Virginia17.4¢$60
Washington14.4¢$49
West Virginia16.1¢$55
Wisconsin19.2¢$66
Wyoming14.7¢$50

Certified models closest in efficiency

top-freezer refrigerators within reach of 343 kWh/yr
ModelkWh/yr$/yr (US avg)
Samsung RT18DG6500most efficient343$65
LG LT18S1100most efficient344$65
LG LT18S2100most efficient344$65
GE GTE16DTNmost efficient345$65
GE GTE16GTNmost efficient345$65
Hotpoint HPE16BTNmost efficient345$65

Run your own numbers

Your rate, your numbers

Per day
18¢
Per month
$5.38
Per year
$65

343 kWh/yr × 18.8¢/kWh = $65/yr

Prefilled with this model's certified 343 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 RT70F18LR use?
ENERGY STAR certifies the Samsung RT70F18LR at 343 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 RT70F18LR cost to run per month?
About $5.38 a month at the U.S. average residential rate (18.8¢/kWh) — 18¢ a day, or $65 a year. Your state's rate moves this up or down; see the table above.
Is the Samsung RT70F18LR energy efficient?
It uses 6% less electricity than the median certified top-freezer refrigerator. It also meets ENERGY STAR's Most Efficient criteria.
What does the Samsung RT70F18LR cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $42 a year in North Dakota (12.3¢/kWh) and $160 in Hawaii (46.6¢/kWh).
How many watts does the Samsung RT70F18LR draw on average?
Spread over a year of continuous operation, 343 kWh works out to an average draw of about 39 watts — like leaving a 39-watt bulb on 24/7.

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