Updated August 15, 2026 · WattCostLab Calculator
Dishwasher Electricity Cost Calculator
Estimate dishwasher electricity cost from an average operating-power assumption and use time.
Default inputs are examples, not claims about every product. Replace them with measured or manufacturer-specific values.
Formula
Daily kWh = watts ÷ 1,000 × operating hours
Daily cost = daily kWh × electricity rate.
What makes the estimate more accurate?
Dishwashers do not draw maximum power continuously. Water heating, pumps and heated drying operate at different times. For better accuracy, use a measured kWh-per-cycle value or product energy information and multiply by cycles.
Related calculators
Appliance Electricity Cost Calculator and Electricity Usage Calculator.
Estimate only. Actual energy use depends on equipment, controls, climate and user behavior.