Cost to Run a 60-watt laptop for 5 hours in Washington
Running a 60-watt laptop for 5 hours uses 0.3 kWh and costs $0.035 at $0.115/kWh in Washington. Do that every day and it adds up to $1.04 a month.
Calculate your own cost
- Per hour
- $0.0070.06 kWh
- Per day
- $0.0350.3 kWh
- Per week
- $0.2422.1 kWh
- Per month (30 days)
- $1.049 kWh
- Per year
- $12.59110 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 60-watt laptop cost per hour?
At $0.115/kWh, it costs $0.007 per hour. The maths: 60 W ÷ 1,000 = 0.06 kWh per hour, × $0.115 = $0.007.
How much does it cost per month?
Used 5 hours a day for 30 days, it costs about $1.04 per month and uses 9 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
0.3 kWh per day, 9 kWh per month and 110 kWh per year at 5 hours a day. A kWh is one kilowatt (1,000 W) used for one hour. It is the unit on your electricity bill.
How can I lower the cost?
Unplug the charger once the battery is full. Check your bill for the exact rate and enter it above.
Does my electricity rate change the answer?
Yes, a lot. At 10¢ per kWh the monthly cost is $0.90 and at 30¢ it is $2.70. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in Washington
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.06 kWh | $0.007 | $0.207 | $2.52 |
| 2 hours | 0.12 kWh | $0.014 | $0.414 | $5.04 |
| 3 hours | 0.18 kWh | $0.021 | $0.621 | $7.56 |
| 4 hours | 0.24 kWh | $0.028 | $0.828 | $10.07 |
| 5 hours | 0.3 kWh | $0.035 | $1.04 | $12.59 |
| 6 hours | 0.36 kWh | $0.041 | $1.24 | $15.11 |
| 7 hours | 0.42 kWh | $0.048 | $1.45 | $17.63 |
| 8 hours | 0.48 kWh | $0.055 | $1.66 | $20.15 |
| 9 hours | 0.54 kWh | $0.062 | $1.86 | $22.67 |
| 10 hours | 0.6 kWh | $0.069 | $2.07 | $25.19 |
| 11 hours | 0.66 kWh | $0.076 | $2.28 | $27.70 |
| 12 hours | 0.72 kWh | $0.083 | $2.48 | $30.22 |
| 13 hours | 0.78 kWh | $0.09 | $2.69 | $32.74 |
| 14 hours | 0.84 kWh | $0.097 | $2.90 | $35.26 |
| 15 hours | 0.9 kWh | $0.104 | $3.11 | $37.78 |
| 16 hours | 0.96 kWh | $0.11 | $3.31 | $40.30 |
| 17 hours | 1.02 kWh | $0.117 | $3.52 | $42.81 |
| 18 hours | 1.08 kWh | $0.124 | $3.73 | $45.33 |
| 19 hours | 1.14 kWh | $0.131 | $3.93 | $47.85 |
| 20 hours | 1.2 kWh | $0.138 | $4.14 | $50.37 |
| 21 hours | 1.26 kWh | $0.145 | $4.35 | $52.89 |
| 22 hours | 1.32 kWh | $0.152 | $4.55 | $55.41 |
| 23 hours | 1.38 kWh | $0.159 | $4.76 | $57.93 |
| 24 hours | 1.44 kWh | $0.166 | $4.97 | $60.44 |
How we worked it out
- Energy per hour: 60 W ÷ 1,000 = 0.06 kWh
- Cost per hour: 0.06 kWh × $0.115 = $0.007
- Cost per day: × 5 hours = $0.035
- Month and year: × 30 days = $1.04, × 365 days = $12.59
Washington electricity prices
Washington pays about $0.115 per kWh, which is 34% lower than the US average of $0.175. The same laptop would cost $1.58 a month at the national average.
What it costs in different places
Same 60-watt laptop, 5 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $1.58 |
| California | $0.32 | $2.88 |
| Texas | $0.155 | $1.40 |
| New York | $0.25 | $2.25 |
| Florida | $0.155 | $1.40 |
| Illinois | $0.17 | $1.53 |
| Pennsylvania | $0.18 | $1.62 |
| Ohio | $0.17 | $1.53 |
| Washington | $0.115 | $1.04 |
About laptop running costs
Laptops are far more efficient than desktops. The charger rating is the maximum, not what it uses day to day.
Typical sizes: 45 W, 60 W, 90 W, 120 W.
How to spend less: Unplug the charger once the battery is full.
What this estimate assumes
- The appliance draws its full stated wattage the whole time it is on. Real units with a thermostat cycle off and cost less.
- Wattage is the typical label value, not a measured value. Check the label on your own appliance.
- The rate is an approximate residential average in Washington. Your bill may include fixed fees, tiers or time-of-use pricing. Edit the rate above.
- A month is 30 days and a year is 365 days.