WattCost

Data through June 2026

Running cost · Clothes Washers · ENERGY STAR certified

LG WM3670H*A

Across a standard year of loads (234 cycles under the DOE test), the LG WM3670H*A uses 100 kWh — about $18 at the U.S. average electricity rate, or roughly 8¢ per load. That's 9% less than the median certified clothes washer, placing it comfortably in the efficient third of the field (101 of 344). The same unit costs $13 a year in Nevada but $53 in Hawaii — electricity rates, not the appliance, make the difference. Electricity is only part of the story for a clothes washer — check the water figure in the specs below.

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

$18/yr

$7.15 · cheapest certified clothes washers$57 · priciest
Per month
$1.53
Per day
5¢
Certified use
100 kWh/yr
Load configuration
Front Load
Drum volume
4.5 cu ft
IMEF
2.92
Annual water use
4,220 gal/yr
39 kWh311 kWh
Where the LG WM3670H*A (▮) sits among all 344 certified clothes washers, by annual kWh

What it costs in every state

LG WM3670H*A: 100 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$16
Alaska28.2¢$28
Arizona15.2¢$15
Arkansas14.1¢$14
California34.7¢$35
Colorado17.1¢$17
Connecticut24.3¢$24
Delaware19.3¢$19
District of Columbia24.4¢$24
Florida15.1¢$15
Georgia16.4¢$16
Hawaiipriciest52.7¢$53
Idaho14.4¢$14
Illinois19.9¢$20
Indiana17.5¢$18
Iowa15.9¢$16
Kansas15.7¢$16
Kentucky14.3¢$14
Louisiana13.5¢$13
Maine29.6¢$30
Maryland21.8¢$22
Massachusetts29.6¢$30
Michigan23.0¢$23
Minnesota17.5¢$18
Mississippi14.9¢$15
Missouri16.2¢$16
Montana15.1¢$15
Nebraska13.3¢$13
Nevadacheapest13.1¢$13
New Hampshire27.0¢$27
New Jersey24.9¢$25
New Mexico15.1¢$15
New York29.5¢$29
North Carolina14.7¢$15
North Dakota14.1¢$14
Ohio19.2¢$19
Oklahoma14.3¢$14
Oregon16.3¢$16
Pennsylvania21.7¢$22
Rhode Island29.2¢$29
South Carolina15.6¢$16
South Dakota15.4¢$15
Tennessee14.1¢$14
Texas15.9¢$16
Utah13.4¢$13
Vermont24.4¢$24
Virginia17.2¢$17
Washington14.9¢$15
West Virginia15.4¢$15
Wisconsin19.6¢$20
Wyoming15.2¢$15

Certified models closest in efficiency

clothes washers within reach of 100 kWh/yr
ModelkWh/yr$/yr (US avg)
Bosch WGB246AXUCmost efficient100$18
BREDA BRWM814002100$18
BREDA BRWM914002100$18
BREDA LUWM81400100$18
BREDA LUWM91400100$18
Gorenje WNPA54U100$18

Run your own numbers

Your rate, your numbers

Per day
5¢
Per month
$1.53
Per year
$18

100 kWh/yr × 18.3¢/kWh = $18/yr

Prefilled with this model's certified 100 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh assumes 234 wash cycles per year (the DOE standard, about 4–5 loads a week) and includes water-heating energy.

Questions, answered with the data

How much electricity does the LG WM3670H*A use?
ENERGY STAR certifies the LG WM3670H*A at 100 kWh per year. The certified annual kWh assumes 234 wash cycles per year (the DOE standard, about 4–5 loads a week) and includes water-heating energy.
How much does the LG WM3670H*A cost to run per month?
About $1.53 a month at the U.S. average residential rate (18.3¢/kWh) — 5¢ a day, or $18 a year. Your state's rate moves this up or down; see the table above.
Is the LG WM3670H*A energy efficient?
It uses 9% less electricity than the median certified clothes washer, placing it in the efficient third of certified models.
What does the LG WM3670H*A cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $13 a year in Nevada (13.1¢/kWh) and $53 in Hawaii (52.7¢/kWh).
What does one load cost with the LG WM3670H*A?
Roughly 8¢ per cycle at the U.S. average rate, based on the DOE test's 234 cycles a year.

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