Typical electricity cost
How much does a Laptop Charger cost to run?
Based on typical usage
A Laptop Charger typically uses about 65 watts, costing around $0.01 per hour at $0.15 per kWh.
At typical use (4 hours per day), that's about $1.17 per month and $14.24 per year.
Based on
- 65 watts
- 4 hours per day
- $0.15 per kWh
What affects cost most
- Average hours used per day
- Electricity rate in dollars per kWh
- Performance mode, accessories, and idle time between tasks
How it works: Daily cost uses wattage, hours per day, and electricity rate. Monthly uses daily × 30; yearly uses daily × 365.
Use the calculator below to estimate cost based on your own wattage, usage time, and electricity rate.
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How Much Electricity Does a Laptop Charger Use?
These example monthly costs show how daily runtime changes the bill at a typical electricity rate.
Example monthly costs
-
Light Use 2.4 hours per day$0.70/month
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Typical Use 4 hours per day$1.17/month
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Heavy Use 5.6 hours per day$1.64/month
Get a better estimate and keep costs down
Defaults are a starting point. Real cost changes most when runtime, wattage, and your electricity rate differ from the benchmark assumptions.
What changes cost most
- Average hours used per day
- Electricity rate in dollars per kWh
- Performance mode, accessories, and idle time between tasks
How to get a better estimate and lower cost
- Replace the default electricity rate with the actual rate from your latest power bill.
- Adjust daily runtime to match how long you actually use the equipment.
- Unplug the charger when the laptop will be unused for long stretches.
- Use battery health settings that reduce constant top-off charging.
- Choose efficient chargers matched to the device.
- Reduce laptop workload to shorten high-draw charging sessions.
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