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How Much Does It Cost to Run a Garbage Disposal in California? (2026)

A garbage disposal runs for seconds at a time. A half-horsepower unit draws around 550 watts, so even daily use adds only a few kWh a year.

A typical garbage disposal (550 W) costs $0.19 per hour, or about $0.29 per month at 0.05 hours a day in California. Cheap to run

WattagePer hourPer dayPer monthPer year
Low (375 W)$0.13$0.007$0.20$2.40
Typical (550 W)$0.19$0.010$0.29$3.51
High (750 W)$0.26$0.013$0.39$4.79

Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 0.05 h/day ≈ 10 kWh per year.

In California, with electricity at $0.35 per kWh (source: EIA Table 5.6.A, 2026-06), a typical garbage disposal costs $0.19 per hour and about $3.51 per year at 0.05 hours a day. That is about 94% more than the US national average of $0.15 per month, because electricity in California costs $0.35 per kWh against $0.18 nationally. Each $1.00 of electricity buys roughly 5.2 hours of use.

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How to lower the cost of running a garbage disposal

Frequently asked questions

How much electricity does a garbage disposal use?

Around 3 to 5 kWh a year with daily use, almost nothing on the bill.

Does a garbage disposal raise the water bill?

Slightly, since it needs running water while it works.

What is the biggest running cost of a disposal?

Water and, if you use hot water, the energy to heat it.

Cost by region

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Use the generic electricity cost calculator →