Appliance Energy Cost Index Model-level energy use and running cost, from ENERGY STAR certified product data

WM3580C* Clothes Washers · LG

WM3580C* (LG, ENERGY STAR Certified) uses 105 kWh per year, an estimated $17.85/yr to run, ranking 35th cheapest of 80 sampled clothes washers, 5% below the $18.70/yr median of the 80 sampled models.

Certification: ENERGY STAR Certified

Est. annual energy cost
$17.85/yr
Cheaper than all but 42% of sampled models in this category
Annual energy use: 105 kWh
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Where this model sits (computed from source data)

Figures above are computed at build time from the sampled source records - no external estimates are used.
Cost rank in category35th of 80
Cost percentilebottom 42%
Vs category median5% below ($18.70/yr)
Rank within same status31st of 74 (Median $18.70/yr)
Rank within similar capacity4th of 31 · volume cubic feet 3.6~5.4 (Median $19.89/yr)
Category low to high$6.63/yr ~ $36.38/yr

Certified specifications (as reported)

Specifications exactly as reported in the certified dataset.
SpecValue
load configurationFront Load
additional washer featuresNone
intended marketResidential
volume cubic feet4.50
width inches27.0
integrated modified energy factor imef2.92
us federal standard imef1.84
annual energy use kwh year105
integrated water factor iwf2.9
us federal standard iwf4.7
annual water use gallons year3841
connectedNo
paired energy star clothes dryer availableNo
date available on market2025-10-30
date qualified2025-10-29
meets most efficient criteriaNo

Similar models in this category

Closest capacity first (at most two rows per identical cost).
ModelCertificationEst. energy cost
MLHW52S7AWW ENERGY STAR Certified$19.04/yr
MLHW52S7AGG ENERGY STAR Certified$19.04/yr
WM3420C* ENERGY STAR Most Efficient$13.60/yr
WEF5727T** ENERGY STAR Certified$23.80/yr
WGF5727T** ENERGY STAR Certified$23.80/yr

Frequently asked questions

How much does it cost to run the LG WM3580C* per year?

The LG WM3580C* is certified at 105 kWh per year, which works out to about $17.85/yr at the flat rate assumed on this site. Certified figures come from standardized test procedures, so your actual bill varies with usage and your local electricity rate.

Is the LG WM3580C* efficient compared with other clothes washers?

Among the 80 clothes washers compared on this site, the LG WM3580C* ranks 35th cheapest to run and sits in the bottom 42% of the cost range. That is 5% below the category median of $18.70/yr. The cheapest sampled model runs at $6.63/yr and the most expensive at $36.38/yr.

What ENERGY STAR status does the LG WM3580C* hold?

The LG WM3580C* is listed as ENERGY STAR Certified. Among the 74 sampled clothes washers with that status the median running cost is $18.70/yr, and the LG WM3580C* ranks 31st cheapest within that group. Certification status reflects efficiency relative to product class, not absolute energy use.

How does the LG WM3580C* compare with similarly sized models?

Using the certified volume cubic feet value of 4.5, 31 sampled models fall within +/-20% (3.6 to 5.4), and the LG WM3580C* ranks 4th cheapest among them. The median for that size band is $19.89/yr. Comparing within a size band is more meaningful than comparing certification labels.

Quick electricity cost calculator

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Simple estimate, 30 days per month (assuming $0.17/kWh)