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How Much Does It Cost to Run a Robot Vacuum in the US? (2026)
A robot vacuum uses 20 to 60 watts of charging power and runs on a battery of 50 to 100 watt-hours. Daily cleaning uses well under 1 kWh a month, though the dock draws a few watts continuously.
A typical robot vacuum (30 W) costs $0.005 per hour, or about $0.24 per month at 1.5 hours a day in United States (average). Cheap to run
| Wattage | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| Low (20 W) | $0.004 | $0.005 | $0.16 | $1.97 |
| Typical (30 W) | $0.005 | $0.008 | $0.24 | $2.96 |
| High (60 W) | $0.011 | $0.016 | $0.49 | $5.91 |
Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 1.5 h/day ≈ 16 kWh per year.
In the US, with electricity at $0.18 per kWh (source: EIA Electric Power Monthly, 2026-06), a typical robot vacuum costs $0.005 per hour and about $2.96 per year at 1.5 hours a day. Each $1.00 of electricity buys roughly 185.2 hours of use.
How to lower the cost of running a robot vacuum
- Schedule fewer runs in rooms that stay clean.
- Keep the dock plugged in. Cycling it wears the battery.
- Empty the bin so the robot does not repeat areas.
In standby it draws about 3 W, which adds roughly 26 kWh ($4.73) per year if it is never unplugged.
Frequently asked questions
How much does a robot vacuum cost to run?
Around 2 to 4 kWh a month including the dock's standby draw.
Does the charging dock use electricity all the time?
Yes, about 2 to 4 watts to maintain the battery and stay connected.
Is a robot vacuum cheaper than a normal vacuum?
Per clean, yes. It uses about a tenth of the electricity, though it cleans less thoroughly.
Compare with
Cost by region
- United States (average)
- California
- Texas
- New York
- Florida
- Canada (average)
- United Kingdom
- Germany
- France
- Australia
- India