Dishwasher Vs Hand Washing Cost
Assumptions: Dishwasher electricity only versus hand washing using gas or electric hot water. Water cost excluded.
| Scenario | Dishwasher | Hand washing | Likely better choice |
|---|---|---|---|
| Full load | About 30p electricity | Depends on hot water | Often dishwasher |
| Few items | Underfilled | Small basin can win | Hand washing |
| Heated dry | Higher | Air dry | Hand washing |
Cost comparison
The dishwasher should be full enough to justify the cycle.
When each option wins
Hand washing cost depends on how hot water is produced and how much is used.
What can change the result
Eco dishwasher cycles are often designed to reduce energy use even when they take longer.
FAQs
Is a dishwasher cheaper?
Often for full loads, but not always for a few items.
Does water cost matter?
Yes, but this comparison focuses on energy.
Should I use eco mode?
Usually if the load is not heavily soiled.
Should I rinse plates?
Scrape rather than pre-rinse with hot water.
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.