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How many watts does a robot vacuum use? (30 W)
A robot vacuum uses about 30 W
Typical range 20–90 watts, plus ~2 W on standby.
Typical range 20–90 watts, plus ~2 W on standby.
Running cost calculator
Per hour—
Per day—
Per month—
Per year—
Energy/mo—
A robot vacuum runs on a small battery, so its real energy use is the charging dock topping up between cleans.
Robot vacuum power specs
| Typical running power | 30 W |
| Typical range | 20–90 W |
| Standby draw | 2 W |
| Energy use | 0.04 kWh/day · 1.3 kWh/mo |
What affects the wattage
- Model size, age and energy rating.
- Settings and how hard it works (heat, speed, load).
- How many hours a day you run it.
Running cost at $0.17/kWh
| Electricity rate | Per day | Per month | Per year |
|---|---|---|---|
| $0.10/kWh | $0.00 | $0.13 | $1.64 |
| $0.15/kWh | $0.01 | $0.20 | $2.46 |
| $0.20/kWh | $0.01 | $0.27 | $3.28 |
| $0.25/kWh | $0.01 | $0.34 | $4.11 |
| $0.30/kWh | $0.01 | $0.40 | $4.93 |
| $0.40/kWh | $0.02 | $0.54 | $6.57 |
See the full breakdown of what it costs to run a robot vacuum, or what size power station runs a robot vacuum.
FAQ
How many watts does a robot vacuum use?
Around 20-90 watts while charging; very little over a full day.
Does the dock waste power when idle?
Only a couple of watts to keep the robot topped up - negligible on your bill.
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