WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

MicroFridge 3.0RMF4RHW

Running around the clock, the MicroFridge 3.0RMF4RHW uses a certified 319 kWh per year — about $59 at the U.S. average rate, or $4.88 a month, the equivalent of a steady 36-watt draw. It sits near the bottom of the certified table — using 30% more than the median compact refrigerator (rank 1267 of 1645) — so the state you live in matters more than usual. The same unit costs $42 a year in Nevada but $168 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 11% less energy than the U.S. federal minimum

Dimensions 33.3" H × 18.6" W

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

$59/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$4.88
Per day
16¢
Certified use
319 kWh/yr
Configuration
Compact Refrigerator
Total capacity
3 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the MicroFridge 3.0RMF4RHW (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

MicroFridge 3.0RMF4RHW: 319 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$52
Alaska28.2¢$90
Arizona15.2¢$48
Arkansas14.1¢$45
California34.7¢$111
Colorado17.1¢$55
Connecticut24.3¢$78
Delaware19.3¢$62
District of Columbia24.4¢$78
Florida15.1¢$48
Georgia16.4¢$52
Hawaiipriciest52.7¢$168
Idaho14.4¢$46
Illinois19.9¢$63
Indiana17.5¢$56
Iowa15.9¢$51
Kansas15.7¢$50
Kentucky14.3¢$45
Louisiana13.5¢$43
Maine29.6¢$94
Maryland21.8¢$70
Massachusetts29.6¢$94
Michigan23.0¢$73
Minnesota17.5¢$56
Mississippi14.9¢$47
Missouri16.2¢$52
Montana15.1¢$48
Nebraska13.3¢$42
Nevadacheapest13.1¢$42
New Hampshire27.0¢$86
New Jersey24.9¢$80
New Mexico15.1¢$48
New York29.5¢$94
North Carolina14.7¢$47
North Dakota14.1¢$45
Ohio19.2¢$61
Oklahoma14.3¢$46
Oregon16.3¢$52
Pennsylvania21.7¢$69
Rhode Island29.2¢$93
South Carolina15.6¢$50
South Dakota15.4¢$49
Tennessee14.1¢$45
Texas15.9¢$51
Utah13.4¢$43
Vermont24.4¢$78
Virginia17.2¢$55
Washington14.9¢$48
West Virginia15.4¢$49
Wisconsin19.6¢$62
Wyoming15.2¢$49

Certified models closest in efficiency

compact refrigerators within reach of 319 kWh/yr
ModelkWh/yr$/yr (US avg)
Danby Designer DCR031B1BSLDD319$59
Danby Designer DCR031B1WDD319$59
MicroFridge 3.0MF4R319$59
MicroFridge 3.0RMF4RHS319$59
Amana AMA31**E320$59
Amana AMA31S5E320$59

Run your own numbers

Your rate, your numbers

Per day
16¢
Per month
$4.88
Per year
$59

319 kWh/yr × 18.3¢/kWh = $59/yr

Prefilled with this model's certified 319 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 MicroFridge 3.0RMF4RHW use?
ENERGY STAR certifies the MicroFridge 3.0RMF4RHW at 319 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 MicroFridge 3.0RMF4RHW cost to run per month?
About $4.88 a month at the U.S. average residential rate (18.3¢/kWh) — 16¢ a day, or $59 a year. Your state's rate moves this up or down; see the table above.
Is the MicroFridge 3.0RMF4RHW energy efficient?
It uses 30% more electricity than the median certified compact refrigerator, which puts it among the least efficient certified models.
What does the MicroFridge 3.0RMF4RHW cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $42 a year in Nevada (13.1¢/kWh) and $168 in Hawaii (52.7¢/kWh).
How many watts does the MicroFridge 3.0RMF4RHW draw on average?
Spread over a year of continuous operation, 319 kWh works out to an average draw of about 36 watts — like leaving a 36-watt bulb on 24/7.

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