Dishwasher Energy Cost Calculator EU

How the Dishwasher Energy Label Cost Calculator Works

The EU energy label for dishwashers was rescaled in March 2021 to provide clearer, more meaningful comparisons between models. Under the new system, dishwashers are rated from A (most efficient) to G (least efficient) based on their energy consumption during the eco program, which is the reference cycle for all labelling tests. This calculator uses the energy class to estimate the kWh consumption per cycle, then multiplies by your weekly usage and electricity rate to determine the cost per cycle, annual energy consumption, and total annual running cost.

Dishwashers are one of the most frequently used kitchen appliances, with the average European household running approximately 4 to 6 cycles per week. A class A dishwasher uses approximately 0.7 kWh per eco cycle, while a class G model consumes about 1.8 kWh per cycle, more than double the energy. At the EU average electricity rate of 0.28 euros per kWh, this translates to roughly 0.20 euros per cycle for a class A machine versus 0.50 euros for a class G machine. While these per-cycle differences seem modest, they accumulate to meaningful annual savings. Running 5 cycles per week, the annual cost difference between class A and class G is approximately 80 euros, and over a 12-year dishwasher lifespan, that adds up to nearly 960 euros.

The energy label for dishwashers also provides important information beyond the energy class. The label shows the energy consumption in kWh per 100 eco cycles, water consumption in litres per cycle, the duration of the eco program, noise levels in decibels with a noise class from A to D, and the rated capacity in place settings. When comparing dishwashers, consider these factors together. A machine with a slightly lower energy class but much lower water consumption or shorter cycle time might be the better choice depending on your priorities. Water costs money too, and in areas with expensive water rates, a water-efficient dishwasher can add further savings.

To get the most out of your dishwasher regardless of its energy class, always run full loads rather than half-empty cycles. The eco program uses the least energy and should be your default choice for everyday loads. Reserve intensive or high-temperature programs for heavily soiled pots and pans. Skip the heated dry option and open the door slightly after the cycle finishes to let dishes air dry. Regularly clean the filter and spray arms to maintain wash efficiency. These habits can reduce your actual energy consumption below the rated label values. If your dishwasher is more than 10 years old, it was rated under the old labelling system and almost certainly consumes more energy than modern models. Replacing an old dishwasher with a current B or C rated model can deliver significant running cost savings that justify the purchase price within a few years.

Energy Consumption by Class