Model
Lg WM6500H*A
Rank #149 means 148 of the 388 washing machine models we track cost less to run each year; the 80th efficiency percentile means it uses less energy for its size than 80% of those models.
What does the Lg WM6500H*A cost to run per year?
Among the 388 washing machine models we track, the Lg WM6500H*A sits in the below-average-cost group, rank #149, at roughly $19 a year. Its size-adjusted efficiency percentile of 80 sits well above the class median, a clearly above-average efficiency result. 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 Lg WM5700H*A at $19/yr runs a little cheaper and the Lg WM6700H*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 WM6500H*A's $19/yr adds up to roughly $190 in electricity alone, before purchase price or repairs.
Also sold as: Lg WM4200H*A.
By the numbers
The Lg WM6500H*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 WM6500H*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 WM6500H*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 WM6500H*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 5 cu ft, the Lg WM6500H*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, neither the size advantage of a small unit nor the size penalty of a large one applies here, so its running cost is a fairer test of efficiency alone. Its IMEF of 2.92, above the class median of 2.76, reflects integrated modified energy factor: a higher figure means it wrings more useful work out of every kilowatt-hour, so it is the efficiency lever to weigh against raw size.
- Spin and wash efficiency (IMEF). IMEF is this class's core efficiency yardstick; two washers with the same drum size can carry meaningfully different IMEF figures and running costs.
- Drum volume. A larger-capacity washer can wash more per load, which can lower cost per pound of laundry, but it also draws more water and energy per cycle if you are not filling it.
- Water heating. Most washers rely on your home's hot water supply, but internal-heater sanitize or hot-wash cycles use meaningfully more electricity than a cold or warm wash.
Common questions
Is the Lg WM6500H*A cheap to run?
Yes. Its $19/yr running cost puts it at rank #149 of 388, below what most washing machine models we track cost to run.
How much does the Lg WM6500H*A cost per month?
About $1.62 a month, which is the $19 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 105 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $19 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Lg WM6500H*A for its size?
80th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 154 | Lg WM5700H*A4.5 cu ft | $19 |
| 153 | Lg WM5500H*A4.5 cu ft | $19 |
| 152 | Lg WM5005H*A4.5 cu ft | $19 |
| 151 | Lg WM5000H*A4.5 cu ft | $19 |
| 150 | Lg WM4500H*A5 cu ft | $19 |
Source
ES_1118034_WM6500H*A_11182022103053_80149412View certified washing machine listingsENERGY STAR data as of July 2026Lg and WM6500H*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.