A washing machine does not have one fixed cost per cycle. The electricity cost depends on how many kilowatt-hours the selected program uses and the electricity tariff on your bill. The basic calculation is simple: cycle electricity cost = cycle energy (kWh) × tariff ($/kWh). A cold wash can use much less electricity than a warm or hot wash because heating water is usually the largest energy task in a washing cycle.
For anyone checking washing machine running cost Australia figures, the safest approach is to use your own machine’s energy data and your own tariff rather than a national-average price. If you only have the annual kWh from an Energy Rating Label, you can also estimate annual cost and a standardised per-use equivalent. The HomeBillLab Appliance Running Cost Calculator can calculate annual and monthly electricity cost from label kWh, or model power and usage when those inputs are more appropriate.
Table of Contents
How much does a washing machine cost per cycle?
If you know the electricity used by one cycle, multiply that figure by the usage rate on your electricity plan. For example, an illustrative cycle using 0.60 kWh at an illustrative tariff of $0.35/kWh costs $0.21 in electricity. This is a worked calculation, not a claim that every Australian washing machine or every program uses 0.60 kWh.
| Illustrative cycle energy | Illustrative tariff | Electricity cost per cycle |
|---|---|---|
| 0.20 kWh | $0.35/kWh | $0.07 |
| 0.60 kWh | $0.35/kWh | $0.21 |
| 1.00 kWh | $0.35/kWh | $0.35 |
The table deliberately holds the tariff constant so you can see the effect of energy use. Replace both inputs with numbers that apply to your household. Electricity prices vary by location and plan, which is why the official Energy Rating Calculator for clothes washers lets users customise the tariff rather than treating one price as universal.
Three ways to estimate your own cost
The best method depends on what information you can access. A measured or manufacturer-specified kWh figure for the exact program is the most direct route to a cycle estimate. If you only know input watts and runtime, a power-based estimate can be useful, but washing machines do not normally draw their maximum power continuously through the whole cycle, so simple watts × time can overstate or misrepresent actual energy use.
- Known cycle energy: kWh per cycle × your $/kWh tariff.
- Energy Rating Label: annual label kWh × your tariff for a standardised annual running-cost estimate.
- Measured energy: use suitable monitoring data for the exact program, then multiply measured kWh by your tariff.
The South Australian Government’s appliance running-cost guidance uses the same core principle: energy use and the household’s electricity tariff determine electricity cost. For a cycling appliance such as a washing machine, measured energy per completed program is usually more informative than assuming the nameplate wattage is drawn for the entire program.
How to use the Energy Rating Label for a washing machine
Australian household clothes washers must meet minimum energy-performance requirements and display an Energy Rating Label. The Australian Government’s clothes-washer guidance explains that the label shows the star rating, estimated annual energy consumption, program time, load capacity and the program used for the energy calculation.
The annual energy figure is based on a standardised usage assumption. For clothes washers, the Energy Rating Label methodology assumes seven uses per week using the specified warm-wash test program and includes standby in the methodology. That standard basis is useful for comparing models, but it does not mean your household will wash every day or use the same program.
If you divide the annual label kWh by 365, treat the result as a label-based per-use equivalent, not a direct measurement of your favourite cycle. Standby is part of the label method, and your cold, eco, quick or high-temperature programs can have different energy use. For annual cost, the cleaner calculation is simply annual label kWh × your electricity tariff.
When comparing models, compare machines of a similar capacity and feature set. The star rating reflects efficiency, while the kWh figure tells you the standardised amount of electricity associated with that model’s label basis. A larger washer with the same star rating as a smaller washer can still use more total energy.
Cold, warm and hot washes can have very different costs
The Australian Government’s household appliance guidance says heating water is by far the biggest energy user when washing fabrics and recommends cold washing where suitable. That is why two cycles on the same machine can have noticeably different electricity use even when the load size is similar.
Some washing machines heat cold inlet water internally. Others may have hot and cold connections, so part of the energy used to supply hot water can occur in the home’s water-heating system rather than inside the washer. If you are trying to calculate whole-house cost rather than only the washer’s metered electricity, account for how your specific machine receives and heats water.
South Australia’s laundry energy guidance also recommends cold or cool water, full loads and a cycle matched to the load. Its published example cost table is useful as a local illustration, but HomeBillLab does not reuse those figures as a national benchmark because the underlying tariffs, machines and test assumptions can differ from yours.
What changes washing machine running cost?
The main variables are the cycle, water temperature, machine efficiency, load size, water connection and tariff. Program duration by itself is not enough to calculate cost: a longer low-power eco cycle can use less electricity than a shorter cycle that spends more energy heating water. Use kWh rather than minutes whenever you can.
- Water temperature: warm and hot washes require energy to heat water.
- Program: eco, cotton, quick, heavy-duty and sanitising cycles can use different combinations of water, heat and motor time.
- Load size: repeated small loads can mean more total cycles; load-sensing machines may adjust use, but the effect depends on the model and program.
- Capacity: an oversized washer is not automatically cheaper to run just because it has a high star rating.
- Tariff: the same kWh costs a different amount on different plans.
- Time of use: if your plan has time-varying prices and the machine supports delay start, shifting a cycle can change the bill cost without changing the cycle’s kWh.
Front loader vs top loader: do not decide from the name alone
Government guidance says front loaders tend to use less water and energy than top loaders, although they can cost more upfront and have longer cycles. That is a useful category-level pattern, not a substitute for comparing actual models. Capacity, star rating, annual kWh, water rating and the program you use all matter.
For a buying decision, use the Energy Rating data to compare electricity and the Water Efficiency Labelling and Standards scheme for water performance. The Water Rating guidance notes that washing machines are covered by WELS and can be compared through the product register. Electricity and water efficiency are separate labels, so a complete household-cost comparison should consider both.
Electricity cost is not the whole laundry cost
This guide’s per-cycle formula is for electricity. A wash also uses water, detergent and, if you use a dryer afterwards, additional electricity. Water and sewerage pricing differs by location, so there is no defensible single national water cost to add to every Australian cycle.
If drying is a significant part of your laundry bill, see the separate clothes dryer running cost guide. A higher final spin speed can remove more water before drying, although the most useful setting still depends on the fabric and machine. Keeping washing and drying costs separate makes it easier to see which appliance or behaviour is driving the total.
Convert a per-cycle cost to weekly and annual cost
Once you have a reasonable electricity cost per cycle, scale it by the number of cycles you actually run:
- Weekly cost = cost per cycle × cycles per week
- Annual cost = cost per cycle × cycles per week × 52
Using the earlier illustrative $0.21 electricity cost and four washes per week gives $0.84 per week and $43.68 per year. Again, that is a formula demonstration only. Your result should use your measured or label-derived energy data and your own tariff.
If your only reliable figure is annual Energy Rating kWh, use the calculator’s Energy Rating Label mode instead of forcing the washer into a constant-wattage model. The calculator returns annual and monthly electricity cost from annual kWh and tariff. The Power & Usage mode is more suitable when power and runtime are genuinely representative. Our calculation methodology explains why HomeBillLab keeps user-entered tariffs and explicit assumptions beside cost estimates.
Practical ways to reduce washing-machine electricity use
The biggest savings usually come from reducing unnecessary water heating and avoiding unnecessary cycles rather than chasing a tiny change in standby power. Use a cold wash when it is suitable for the fabric and hygiene need, run sensible full loads, select an efficient program, and compare the machine’s actual Energy Rating information when replacing an appliance.
- Use cold water where appropriate and follow garment and detergent instructions.
- Combine small loads when practical instead of running more cycles than necessary.
- Use load-sensing or economy features where they suit the load.
- If you will tumble-dry the load, use an appropriate higher spin speed to reduce retained water.
- On a time-of-use plan, consider delay start when a lower-price period fits your household routine and the appliance can operate safely unattended according to its instructions.
- Keep filters, dispensers and the machine maintained according to the manufacturer instructions.
If you want to compare another always-on or frequently used appliance, the fridge running cost guide shows how annual Energy Rating kWh works for a different usage pattern. You can browse the wider Appliances guides for other household running-cost calculations.
FAQ about Washing Machine Running Cost Australia
How do I calculate washing machine cost per cycle?
Multiply the electricity used by the cycle in kWh by your electricity rate in dollars per kWh. If a cycle uses 0.60 kWh and your rate is $0.35/kWh, the illustrative electricity cost is $0.21.
Can I divide the Energy Rating Label kWh by 365?
You can use annual label kWh ÷ 365 as a standardised per-use equivalent because the clothes-washer label basis assumes seven uses per week. Do not treat it as a direct measurement of a specific cold, eco or quick cycle, because the label is tied to its test program and methodology.
Is a cold wash cheaper than a warm wash?
It generally uses less electricity because less or no electricity is needed to heat wash water. The exact difference depends on the washer, water connection and program.
Does a longer wash cycle always cost more?
No. Runtime alone does not determine energy use. An efficient long cycle may use less electricity than a shorter hotter program. Compare kWh for the cycle or the relevant label/test information.
Should I include water cost in the washing-machine calculation?
Include it if you want total wash cost, but use your local water and sewerage charges and the model’s water-use data. HomeBillLab’s appliance calculator focuses on electricity, so keep water as a separate clearly labelled cost.
Calculate your own washing-machine running cost
Start with the best energy figure you have: measured kWh for the program if available, or annual kWh from the Energy Rating Label for an annual estimate. Then use the electricity tariff from your bill. Avoid assuming that another household’s cycle cost applies to yours, because program choice, water temperature, model efficiency and tariff can all change the result.
Use the Appliance Running Cost Calculator for annual label kWh or a power-and-usage scenario, and keep water charges separate when you need a full laundry-cost estimate. The Australian Energy Rating system remains the best starting point for comparing regulated washer energy data before purchase.