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How Much Does It Cost to Run a Laptop in Hawaii?
The short answer
A typical 60W laptop costs about $0.03 per hour to run in Hawaii, or $7.01 a month at 8 hours a day.
That’s based on Hawaii’s average residential rate of 48.0¢/kWh (EIA, July 2026), 162% above the US average.
Source: U.S. EIA, July 2026 data · Updated
Laptop cost by daily use in Hawaii
| Daily use | kWh/month | Per day | Per month | Per year |
|---|---|---|---|---|
| 1 hour/day | 1.8 | $0.03 | $0.88 | $10.51 |
| 2 hours/day | 3.7 | $0.06 | $1.75 | $21.02 |
| 4 hours/day | 7.3 | $0.12 | $3.50 | $42.05 |
| 8 hours/day | 14.6 | $0.23 | $7.01 | $84.10 |
| 12 hours/day | 21.9 | $0.35 | $10.51 | $126 |
| 24 hours/day | 43.8 | $0.69 | $21.03 | $252 |
Hawaii vs other states
Hawaii has the most expensive electricity in the country, so running a laptop here costs $61.81 more a year than in Louisiana at the same usage.
Hawaii has the most expensive residential electricity of the 50 states and DC. electricity prices in Hawaii · all states ranked
Electricity price trend in Hawaii
48.0¢/kWh in July 2026 — ▲ +22.0% from a year earlier.
How to lower the cost of running a laptop
Laptops are designed to run on batteries, so they're inherently efficient. Typical use draws 30–60W from the charger, with gaming laptops and mobile workstations reaching 100–200W under load. Even working full time on a laptop costs only a few dollars a month in most states.
- Use battery-saver mode and lower screen brightness.
- Unplug once charged if your laptop lacks charge-limiting features.
- Put it to sleep instead of leaving it idle overnight.
Questions
Frequently asked questions
How much does it cost to run a laptop for 24 hours in Hawaii?
Running a 60W laptop for 24 hours uses about 1.44 kWh, which costs about $0.69 at Hawaii’s average rate of 48.0¢/kWh.
How many kWh does a laptop use per month?
At 8 hours a day, a typical laptop uses about 14.6 kWh a month. In Hawaii that costs $7.01.
Is it expensive to run a laptop in Hawaii?
Hawaii has the most expensive residential electricity of the 50 states and DC at 48.0¢/kWh — one of the most expensive. Running a laptop here costs about $84.10 a year at typical use, compared with $32.08 at the national average rate.
What is the electricity rate in Hawaii right now?
The average residential electricity rate in Hawaii was 48.0¢ per kWh in July 2026, according to the latest EIA data — up 22.0% from a year earlier.
Laptop costs in nearby states
Other appliances in Hawaii
Cheapest and priciest states
Comparisons
Sources & method
- Electricity rates: U.S. Energy Information Administration, Electric Power Monthly — average residential retail price, July 2026 (latest available). Retrieved .
- CO₂: EIA State Electricity Profiles, 2024 emissions rate of in-state power generation.
- Default usage for laptop: 8 hours a day. Typical power 60W.
- Formulas, duty cycles and limitations: methodology. Data download: open data (CC BY 4.0).