How much does a dishwasher cost to run?

At the current price cap, a dishwasher costs about 26.3p per cycle, or around £54.90 a year with typical use.

  • By Steven Stewart
  • Checked 20 October 2026
  • Ofgem price cap, October to December 2026
  • Source: Ofgem

Picking one fills in typical figures. Change any of them to match yours.

watts

On the rating plate or in the manual. 1 kW = 1,000 W.

hours

15 minutes = 0.25, 30 minutes = 0.5.

days
p per kWh

Price cap default for October to December 2026. Your bill shows your own rate.

Dishwasher

Running cost a year£54.90
An hour
13.2p
A day used
26.3p
A week
£1.05
A month
£4.57
Energy a year
209 kWh

500 W for 2 hours a day, 4 days a week, at 26.32p per kWh.

Excludes the daily standing charge, which you pay whatever you use.

How it compares

Yearly cost with typical use, at your unit rate.

  • Tumble dryer (vented)£148.22
  • Electric shower£136.90
  • Electric oven£109.79
  • Fridge freezer£69.17
  • Dishwasher (yours)£54.90
  • TV (55-inch LED)£38.43
  • Kettle£28.82

Dishwasher running costs

At 26.32p per kWh, with typical use of 2 hours a day, 4 days a week.

PeriodEnergyCost
Per cycle1 kWh26.3p
Per hour in use0.5 kWh13.2p
Per week4 kWh£1.05
Per month17.4 kWh£4.57
Per year209 kWh£54.90

How the cost varies

Eco programmes to intensive hot washes, per cycle.

Energy usePer cyclePer year (typical use)
Lower13.2p£27.45
Typical26.3p£54.90
Higher39.5p£82.34

Kitchen appliances compared

Yearly cost with typical use, at 26.32p per kWh.

AppliancePer hourPer year
Fridge freezer0.8p£69.17
Dishwasher (this page)13.2p£54.90
Kettle79p£28.82
Bean-to-cup coffee machine38.2p£13.93
Toaster23.7p£4.32

Ways to spend less

  • Use the eco programme. It takes longer but uses less energy, because it washes at a lower temperature.
  • Run it only when it’s full.
  • Scrape plates instead of rinsing them under a hot tap, which can use more energy than the dishwasher itself.

How we calculate this

We take a typical dishwasher at 500 watts (an average, as it switches on and off while running), used 2 hours a day, 4 days a week, and multiply the energy it uses by the Ofgem price cap unit rate of 26.32p per kWh.

One cycle uses about 1 kWh. Use the calculator above with your own appliance’s power and how you use it for a closer figure.

kWh per day = (watts ÷ 1,000) × hours per dayCost per day = kWh per day × unit rateCost per year = cost per day × days per week × 52.14

Questions people ask

How much does a dishwasher cost to run a year?

With typical use (2 hours a day, 4 days a week), about £54.90 a year at the current price cap, or £4.57 a month.

Is a dishwasher cheaper than washing by hand?

Often, if you run it full on eco. Washing by hand with lots of hot running water can use more energy and water than a full eco cycle.

Why does the eco setting take so long?

It saves energy by heating the water less and soaking for longer. Longer programmes can still use less electricity in total.

Does this include the standing charge?

No. The standing charge (54.83p a day under the current cap, about £200.13 a year) is a fixed daily cost for being connected. It does not change with how much you use any appliance.

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