Model
Lg WM4080H*A
Rank #139 means 138 of the 388 washing machine models we track cost less to run each year; the 67th efficiency percentile means it uses less energy for its size than 67% of those models.
What does the Lg WM4080H*A cost to run per year?
Ranking #139 of 388, the Lg WM4080H*A is in the cheaper half of its class to run, at about $19 a year. Adjusted for size, it is more efficient than 67% of washing machine models we track, a solidly above-average result. The IMEF figure of 2.92 on this model captures integrated modified energy factor, the main efficiency lever ENERGY STAR tracks for this class.
Immediately around it on the leaderboard, the Lg WM4000H*A at $19/yr runs a little cheaper and the Lg WM4100H*A at $19/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A washing machine typically stays in service for somewhere around 10 years; over that span, the Lg WM4080H*A's $19/yr adds up to roughly $190 in electricity alone, before purchase price or repairs.
Also sold as: Lg WM3580C*.
By the numbers
The Lg WM4080H*A normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $19/yr, here is what the Lg WM4080H*A adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Lg WM4080H*A costs about $190. That is roughly $10 less than the class median, which would run closer to $200 over the same ten years.
How the Lg WM4080H*A compares
The washing machine class we track runs from $7 to $58 a year. At $19/yr, it runs about $1 a year cheaper than the class median of $20, and it is about $12 a year more than the cheapest washing machine to run at $7.
What drives its running cost
At 4.5 cu ft, the Lg WM4080H*A is a mid-size washing machine for its class, which spans 1.9 to 6 cu ft with a median of 4.5 cu ft, putting it squarely in the middle of the class on the size lever that drives most of the cost. The IMEF of 2.92 on this model, above the class median of 2.76, measures integrated modified energy factor; it is the number to compare directly against another model's IMEF if capacity is similar.
- Spin and wash efficiency (IMEF). A higher Integrated Modified Energy Factor means the machine wrings more useful washing (and a drier spin) out of every kilowatt-hour and gallon it uses.
- Drum volume. Drum volume sets the ceiling on how much a single cycle can wash, and it is usually the first driver of a washer's per-cycle energy use.
- Water heating. Cycle temperature, more than drum size, is usually what separates a cheap wash cycle from an expensive one on models with an internal water heater.
Common questions
Is the Lg WM4080H*A cheap to run?
Yes, relatively. At $19 a year it ranks #139 of 388 washing machine models we track, in the cheaper part of its class to run.
How much does the Lg WM4080H*A cost per month?
Roughly $1.62/mo, spreading the $19/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 105 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $19 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Lg WM4080H*A for its size?
67th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 146 | Lg WM4000H*A4.5 cu ft | $19 |
| 145 | Lg WM3900H*A4.5 cu ft | $19 |
| 144 | Lg WM3850H*A4.5 cu ft | $19 |
| 143 | Lg WM3800H*A4.5 cu ft | $19 |
| 142 | Lg WM3700H*A4.5 cu ft | $19 |
Source
ES_1118034_WM4080H*A_03042022014023_80118577View certified washing machine listingsENERGY STAR data as of July 2026Lg and WM4080H*A are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.