Model
Miele WXF660
Rank #209 means 208 of the 388 washing machine models we track cost less to run each year; the 5th efficiency percentile means it uses less energy for its size than 5% of those models.
What does the Miele WXF660 cost to run per year?
The Miele WXF660 costs about $22 a year to run, a middle-of-the-pack figure at rank #209 of 388. Once capacity is factored in, its efficiency percentile of 5 is among the lowest in its class. The IMEF figure of 2.13 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 Miele WXD160 at $22/yr runs a little cheaper and the Miele WXF960 at $22/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 Miele WXF660's $22/yr adds up to roughly $220 in electricity alone, before purchase price or repairs.
Also sold as: Miele WWD160.
By the numbers
The Miele WXF660 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 $22/yr, here is what the Miele WXF660 adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Miele WXF660 costs about $220. That is roughly $20 more than the class median, which would run closer to $200 over the same ten years.
How the Miele WXF660 compares
The washing machine class we track runs from $7 to $58 a year. At $22/yr, it runs about $2 a year above the class median of $20, and it is about $15 a year more than the cheapest washing machine to run at $7.
What drives its running cost
At 2.3 cu ft, the Miele WXF660 is a small washing machine for its class, which spans 1.9 to 6 cu ft with a median of 4.5 cu ft, and smaller washing machine models generally cost less to run for the same job, all else being equal. Its IMEF of 2.13, below 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). 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 Miele WXF660 cheap to run?
It is about average. At $22 a year it ranks #209 of 388 washing machine models we track, close to the middle of its class on running cost.
How much does the Miele WXF660 cost per month?
Roughly $1.79/mo, spreading the $22/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 116 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $22 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Miele WXF660 for its size?
5th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 212 | Miele WXD1602.3 cu ft | $22 |
| 211 | Miele WXC2802.3 cu ft | $22 |
| 210 | Miele WWD6602.3 cu ft | $22 |
| 209 | Miele WWD1602.3 cu ft | $22 |
| 208 | Midea MLHW52S7AWW4.5 cu ft | $21 |
Source
ES_1105859_WXF660 WCS_03252021114453_80074358View certified washing machine listingsENERGY STAR data as of July 2026Miele and WXF660 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.