Kitchen and laundry
Dishwasher Cost Calculator UK
Estimate dishwasher electricity cost. Water use is not included, but electricity is usually the biggest variable cost.
Estimated running cost
- Per hour
- 29.60p
- Per day
- 29.60p
- Per week
- £2.07
- Per month
- £8.88
- Per year
- £108.05
Formula: average cycle wattage ÷ 1,000 × cycle hours × electricity price.
Cost table
| Scenario | Power | Use time | Cost at 24.67p/kWh |
|---|---|---|---|
| Eco cycle, 700W for 2 hours | 700W | 2 hours | 34.54p |
| Standard cycle, 1,200W for 1 hour | 1,200W | 1 hours | 29.60p |
| Intensive cycle, 1,500W for 1.5 hours | 1,500W | 1.50 hours | 55.51p |
Formula
average cycle wattage ÷ 1,000 × cycle hours × electricity price = running cost
For example, a 1,200W dishwasher used for 1 hour at 24.67p/kWh costs 1.2 x 1 x 24.67p = 29.60p.
Ways to reduce the cost
- Run full loads where possible.
- Use eco mode when dishes are not heavily soiled.
- Skip heated dry if your machine allows it.
- Keep filters clean to avoid repeat cycles.
FAQs
How much does a dishwasher cost per cycle?
Many cycles cost roughly 25p-55p in electricity, depending on heat and duration.
Is eco mode cheaper?
Usually yes, because it reduces heating demand even when the cycle takes longer.
Is hand washing cheaper?
It depends on hot water method and how much water you use.
Does this include tablets?
No. It estimates electricity only.
Last reviewed 3 May 2026. Source: Ofgem energy price cap. Figures are estimates. Actual prices vary by region, supplier, tariff, payment method and meter type.