What does your dryer electricity-cost result mean?
The calculator turns energy per drying cycle into yearly kWh and cost. If you enter an alternative dryer, it also shows how much electricity and money the lower or higher kWh-per-cycle figure changes over your actual usage.
Change an input above and this interpretation updates automatically.
Continue your calculation
Dryer running cost is only one part of household electricity use. These calculators help place the result in a wider energy and utility context.
How does the tumble dryer electricity cost calculator work?
The most useful starting point is the dryer's electrical energy use for one representative drying cycle. That value is already energy, so there is no need to convert watts and hours if you have a reliable kWh-per-cycle figure.
When an alternative dryer is entered, the same annual cycle count and electricity price are used for both machines. This isolates the effect of the different kWh-per-cycle values. The calculator then subtracts the alternative annual cost from the current annual cost.
Simple payback is shown only when the alternative actually saves money and an extra purchase cost has been entered. It is a screening metric, not a complete lifetime-cost or investment analysis.
Where should you get the input data?
| Input | Good source | What to check |
|---|---|---|
| Current kWh/cycle | Energy label, product sheet, manual or measured cycle | Use a drying programme and load that resemble your real use. |
| Cycles/week | Your laundry routine, app history or a short usage log | Count drying cycles, not washing cycles, if some loads are line-dried. |
| Electricity price | Electricity bill or supplier tariff | Enter the variable price per kWh, not the whole bill or monthly payment. |
| Alternative kWh/cycle | Comparable product information or measurement | Compare similar load sizes and programmes rather than unrelated test conditions. |
| Extra purchase cost | The price difference between the options you are actually considering | For two new dryers, use the price premium of the more efficient option, not automatically its full purchase price. |
Reading a modern energy label: check whether the number is per cycle or per 100 cycles
Labels do not use exactly the same presentation in every market. On the current EU tumble-dryer energy label, the energy figure is shown as weighted average electricity consumption per 100 drying cycles. Divide that number by 100 before entering it in a field labelled kWh/cycle. If your label instead shows annual kWh, do not paste the annual figure into the cycle field unless you first convert it using the documented number of assumed cycles.
kWh per cycle is not the same as kW
kW is power: how quickly the dryer is drawing electrical energy at a particular moment. kWh is energy: the amount used over time. A dryer can draw several kilowatts during part of a cycle but still use a much smaller number of kilowatt-hours over the complete cycle.
For this calculator, use kWh per completed drying cycle. If all you know is a watt rating, use the Appliance Electricity Cost Calculator only as a rougher power-and-time model, because dryer heating and control can vary during the cycle.
What affects tumble-dryer electricity cost the most?
Four inputs drive the result directly. The first is energy per cycle: every 10% change in kWh/cycle changes the calculated variable electricity cost by 10% if everything else stays the same. The second is how often the dryer is used. Doubling cycles per week doubles annual kWh and annual cost.
The third factor is electricity price. A dryer with unchanged energy use costs more to run when the tariff rises. The fourth factor matters only for replacement decisions: extra purchase cost. It does not change electricity savings, but it changes how long those savings need to recover the premium.
In real life, load size, residual moisture after washing, programme choice, filters, airflow and automatic moisture sensing can also change the energy used by an individual cycle. Those effects should be reflected in the kWh/cycle value you choose rather than added as separate multipliers without evidence.
Does your dryer result look realistic?
Use the result as a consistency check, not as a universal benchmark. If the annual kWh looks unexpectedly high, first check the unit on the source data. A label value such as 85 kWh/100 cycles means 0.85 kWh/cycle, not 85 kWh/cycle. Also make sure that monthly drying cycles were not entered in the weekly field.
If the alternative appears to save no electricity, that can be a valid result: its entered kWh/cycle is equal to or higher than the current dryer's. If the payback looks extremely long, the main reason may simply be low dryer use, a small efficiency difference or a high purchase premium.
For a household with highly seasonal use, run separate scenarios rather than assuming the same weekly cycle count throughout the year.
Worked example: current dryer vs a more efficient alternative
Suppose the current dryer uses 2.2 kWh per cycle and is used four times per week. Electricity costs €0.30/kWh. An alternative dryer uses 1.0 kWh per cycle and costs €300 more.
The alternative cuts calculated dryer electricity by 249.6 kWh/year, or about 54.5%, under these assumptions. Whether replacement is worthwhile still depends on the actual purchase decision, expected lifetime, drying performance and other costs.
How usage frequency changes the value of efficiency
The same 1.2 kWh-per-cycle efficiency improvement is worth very different amounts in a household that dries two loads per week and one that dries seven. At €0.30/kWh, the saving is €0.36 per cycle.
| Cycles/week | Cycles/year | Annual electricity saving | Annual cost saving |
|---|---|---|---|
| 2 | 104 | 124.8 kWh | €37.44 |
| 4 | 208 | 249.6 kWh | €74.88 |
| 7 | 364 | 436.8 kWh | €131.04 |
This is why purchase decisions should use your expected cycle count rather than a generic household average.
Compare like with like: programme, load and moisture matter
A fair comparison requires energy figures that refer to reasonably comparable drying tasks. A test programme at full rated capacity is not automatically representative of every small everyday load. Likewise, one dryer may report a figure for a different programme or test standard than another.
Residual moisture entering the dryer also matters. A washing machine that spins laundry more effectively can reduce how much water the dryer must remove. That means the dryer's real kWh/cycle can change even though the dryer itself has not changed.
If possible, compare official figures from the same labelling framework or compare several measured cycles with similar load size and starting moisture.
Heat-pump dryers and lower-energy cycles
Heat-pump dryers can use substantially less electricity than conventional electric dryers because they recover and reuse heat instead of relying only on resistance heating. They may also have different cycle times and operating characteristics. For cost comparison, you do not need to model the technology separately: enter a comparable measured or labelled kWh/cycle for each dryer.
Do not assume that a longer programme necessarily costs more. Cost follows the total kWh used by the complete cycle, not cycle duration alone.
What simple payback includes — and what it leaves out
The calculator's payback answers a narrow question: how many years of electricity savings would recover the entered extra purchase cost if use, kWh/cycle and electricity price stayed constant?
It does not include financing, discount rates, repair probability, resale value, warranty differences, expected lifetime, maintenance, drying time or changes in future electricity prices. It also does not claim that replacing a functioning dryer is automatically the cheapest decision.
If the current dryer is already owned, the relevant premium may be the full cost of buying the replacement now. If you are already choosing between two new dryers, the relevant premium is usually the price difference between those purchase options.
Common dryer-cost calculation mistakes
- Entering kWh per 100 cycles as if it were kWh per one cycle.
- Entering annual kWh directly in the kWh/cycle field.
- Using monthly cycle count in a field labelled cycles per week.
- Comparing different programmes, capacities or load assumptions without checking the source.
- Entering the full price of the alternative as the extra cost when both purchase options have a cost.
- Assuming a longer cycle always uses more electricity.
- Treating simple payback as a guarantee of full lifetime savings.
What should you do with the result?
If you are estimating the current dryer's running cost, compare its annual kWh with your total household electricity consumption in the Electricity Cost Calculator. If the dryer seems to represent a large share, improving the kWh/cycle input with measured data can be more useful than adding extra decimal places to the tariff.
If you are comparing a replacement, look first at annual electricity saving and then at simple payback. A positive saving does not automatically mean immediate replacement is financially optimal; the extra purchase cost and expected remaining life of the current machine matter.
To compare another appliance that is better described by watts and operating hours rather than cycles, use the Appliance Electricity Cost Calculator.
For electrical, appliance-service and energy-technology students
This calculator is a practical exercise in unit-based energy costing. The key skill is recognising that a per-cycle energy value must first be scaled by the number of cycles before a tariff can be applied. It also introduces simple payback as a ratio of extra investment to annual monetary saving.
Exercise: A training workshop compares a dryer using 2.4 kWh/cycle with an alternative using 1.2 kWh/cycle. The dryer runs 5 cycles per week, electricity costs €0.30/kWh and the alternative costs €250 more. Calculate annual cycles, annual kWh for both dryers, annual saving and simple payback.
This is the same structure used in equipment-selection exercises: establish a common service level, compare energy use under the same usage assumption, convert the difference to money and only then discuss whether the purchase premium is justified.