Updated August 15, 2026 · WattCostLab Calculator

Dishwasher Electricity Cost Calculator

Estimate dishwasher electricity cost from an average operating-power assumption and use time.

Energy/day
Cost/day
Cost/month
Cost/year

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.

Data note: Electricity prices vary by location and tariff. The default $0.173/kWh is a U.S. residential reference; use your actual utility rate for decision-making. See sources.

Estimate only. Actual energy use depends on equipment, controls, climate and user behavior.