Model
Lg WKE100H*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 WKE100H*A cost to run per year?
At $19 a year to run, the Lg WKE100H*A runs cheaper than most models in its class, ranking #139 of 388 washing machine models we track. Its 67th size-adjusted efficiency percentile is a step ahead of the class median, though not among the very top results. At a IMEF of 2.92, its integrated modified energy factor is the single figure that best explains how it earns its running-cost number.
Immediately around it on the leaderboard, the Samsung WH53DBH7**G* at $19/yr runs a little cheaper and the Lg WKEX200H*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 WKE100H*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 WKE100H*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 WKE100H*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 WKE100H*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 WKE100H*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 WKE100H*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. Beyond size, its IMEF of 2.92, above the class median of 2.76, is the class's own efficiency yardstick, integrated modified energy factor, and it is what separates two similarly sized models with different running costs.
- 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 WKE100H*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 WKE100H*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 WKE100H*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 |
|---|---|---|
| 133 | Samsung WH53DBH7**G*5.3 cu ft | $19 |
| 132 | Samsung WH53DBH7**E*5.3 cu ft | $19 |
| 131 | Samsung WF90F53*D*5.3 cu ft | $19 |
| 130 | Samsung WF53BB89**A*5.3 cu ft | $19 |
| 129 | Samsung WF53BB87**A*5.3 cu ft | $19 |
Source
ES_1118034_WKE100H*A_12182020052311_80067043View certified washing machine listingsENERGY STAR data as of July 2026Lg and WKE100H*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.