Washing Machine Running Cost Calculator
Washing machine energy costs add up faster than most buyers expect, and they vary considerably from one model to the next. This calculator gives you a yearly electricity estimate by multiplying three inputs: loads per week, kWh per cycle, and your local electricity rate in dollars per kWh. The result is a straightforward annual figure you can compare across any machines on your shortlist.
The kWh per cycle number comes from the product's energy guide label or spec sheet, not from any in-house measurement. Every result reflects the numbers you enter. Use the tool to see how a lower-capacity portable washer stacks up against a full-size model on long-term operating cost, not just sticker price.
Calculator
How the math works
Yearly cost = loads per week x 52 weeks x kWh per cycle x your $/kWh rate
Every spec in this tool comes from the product data behind our our top picks; see how we choose.
U.S. residential electricity rates by state
The calculator's state dropdown uses these numbers. Download the full table as CSV.
Show all 51 states & rates
| Alabama | 17.15 |
| Alaska | 27.17 |
| Arizona | 15.59 |
| Arkansas | 13.63 |
| California | 33.35 |
| Colorado | 16.74 |
| Connecticut | 30.47 |
| Delaware | 17.64 |
| District of Columbia | 25.0 |
| Florida | 14.86 |
| Georgia | 15.01 |
| Hawaii | 42.23 |
| Idaho | 13.01 |
| Illinois | 18.86 |
| Indiana | 17.85 |
| Iowa | 13.42 |
| Kansas | 15.34 |
| Kentucky | 14.88 |
| Louisiana | 14.16 |
| Maine | 28.32 |
| Maryland | 22.2 |
| Massachusetts | 30.21 |
| Michigan | 21.2 |
| Minnesota | 15.08 |
| Mississippi | 16.3 |
| Missouri | 13.44 |
| Montana | 13.48 |
| Nebraska | 13.1 |
| Nevada | 14.17 |
| New Hampshire | 26.92 |
| New Jersey | 23.49 |
| New Mexico | 14.81 |
| New York | 28.55 |
| North Carolina | 16.0 |
| North Dakota | 11.95 |
| Ohio | 18.78 |
| Oklahoma | 13.56 |
| Oregon | 14.89 |
| Pennsylvania | 20.92 |
| Rhode Island | 29.91 |
| South Carolina | 16.45 |
| South Dakota | 14.29 |
| Tennessee | 15.08 |
| Texas | 16.39 |
| Utah | 13.17 |
| Vermont | 24.11 |
| Virginia | 17.05 |
| Washington | 14.4 |
| West Virginia | 16.37 |
| Wisconsin | 18.8 |
| Wyoming | 13.59 |
Data source: U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A, March 2026. Retrieved 2026-06-10. U.S. average: 18.56 cents/kWh.
Frequently asked questions
Where do I find the kWh per cycle for a portable washer?
Check the product's energy guide label, which appears in the listing images or on the manufacturer's spec sheet. Some portables, including smaller semi-automatic models like the Zeny twin-tub series, do not publish a kWh per cycle figure directly. In that case, you can use a typical range of 0.3 to 0.5 kWh per cycle for compact portables and 0.5 to 0.8 kWh per cycle for larger fully automatics as a starting estimate.
How many loads per week is realistic for a portable washer?
It depends heavily on household size and the machine's capacity. A single person with a compact 5 to 6 lb washer might run 3 to 4 cycles a week because the drum fills quickly. A couple with a larger portable in the 1.3 to 1.5 cu ft range typically needs 4 to 7 loads. Because smaller drums process less per cycle, portable users often run more total cycles than they would with a full-size machine.
Which portable washers tend to have the lowest energy draw based on published specs?
Smaller capacity models draw less power per cycle. Semi-automatic twin-tub machines, which heat no water of their own and use a simple motor, are generally the most energy-lean. Fully automatic portables with internal heaters consume more. Among larger portables, models with stainless steel drums and fewer heat cycle options tend to publish lower per-cycle consumption figures. Always verify with the specific product's energy guide rather than assuming from size alone.
How does the calculator handle different electricity rates?
You enter your rate in dollars per kWh, which you can find on your utility bill. The calculator multiplies: loads per week x 52 x kWh per cycle x your rate. As a concrete example, a machine rated at 0.5 kWh per cycle, run 5 times a week at a $0.15 per kWh rate, costs roughly $19.50 per year in electricity. Regions with high utility rates, such as parts of California or New England, can see that figure double compared to lower-rate states.