Cost to Run a 25-watt router modem combo for 8 hours in Alabama
Running a 25-watt router modem combo for 8 hours uses 0.2 kWh and costs $0.031 at $0.155/kWh in Alabama. Do that every day and it adds up to $0.93 a month.
Calculate your own cost
- Per hour
- $0.0040.03 kWh
- Per day
- $0.0310.2 kWh
- Per week
- $0.2171.4 kWh
- Per month (30 days)
- $0.936 kWh
- Per year
- $11.3273 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 25-watt router modem combo cost per hour?
At $0.155/kWh, it costs $0.004 per hour. The maths: 25 W ÷ 1,000 = 0.03 kWh per hour, × $0.155 = $0.004.
How much does it cost per month?
Used 8 hours a day for 30 days, it costs about $0.93 per month and uses 6 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
0.2 kWh per day, 6 kWh per month and 73 kWh per year at 8 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?
Use the provider’s rated power as a guide and avoid frequent unnecessary restarts. 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 $0.60 and at 30¢ it is $1.80. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in Alabama
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.03 kWh | $0.004 | $0.116 | $1.41 |
| 2 hours | 0.05 kWh | $0.008 | $0.233 | $2.83 |
| 3 hours | 0.08 kWh | $0.012 | $0.349 | $4.24 |
| 4 hours | 0.1 kWh | $0.016 | $0.465 | $5.66 |
| 5 hours | 0.13 kWh | $0.019 | $0.581 | $7.07 |
| 6 hours | 0.15 kWh | $0.023 | $0.698 | $8.49 |
| 7 hours | 0.18 kWh | $0.027 | $0.814 | $9.90 |
| 8 hours | 0.2 kWh | $0.031 | $0.93 | $11.32 |
| 9 hours | 0.23 kWh | $0.035 | $1.05 | $12.73 |
| 10 hours | 0.25 kWh | $0.039 | $1.16 | $14.14 |
| 11 hours | 0.28 kWh | $0.043 | $1.28 | $15.56 |
| 12 hours | 0.3 kWh | $0.047 | $1.40 | $16.97 |
| 13 hours | 0.33 kWh | $0.05 | $1.51 | $18.39 |
| 14 hours | 0.35 kWh | $0.054 | $1.63 | $19.80 |
| 15 hours | 0.38 kWh | $0.058 | $1.74 | $21.22 |
| 16 hours | 0.4 kWh | $0.062 | $1.86 | $22.63 |
| 17 hours | 0.43 kWh | $0.066 | $1.98 | $24.04 |
| 18 hours | 0.45 kWh | $0.07 | $2.09 | $25.46 |
| 19 hours | 0.48 kWh | $0.074 | $2.21 | $26.87 |
| 20 hours | 0.5 kWh | $0.078 | $2.33 | $28.29 |
| 21 hours | 0.53 kWh | $0.081 | $2.44 | $29.70 |
| 22 hours | 0.55 kWh | $0.085 | $2.56 | $31.12 |
| 23 hours | 0.58 kWh | $0.089 | $2.67 | $32.53 |
| 24 hours | 0.6 kWh | $0.093 | $2.79 | $33.95 |
How we worked it out
- Energy per hour: 25 W ÷ 1,000 = 0.03 kWh
- Cost per hour: 0.03 kWh × $0.155 = $0.004
- Cost per day: × 8 hours = $0.031
- Month and year: × 30 days = $0.93, × 365 days = $11.32
Alabama electricity prices
Alabama pays about $0.155 per kWh, which is 11% lower than the US average of $0.175. The same router modem combo would cost $1.05 a month at the national average.
What it costs in different places
Same 25-watt router modem combo, 8 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $1.05 |
| California | $0.32 | $1.92 |
| Texas | $0.155 | $0.93 |
| New York | $0.25 | $1.50 |
| Florida | $0.155 | $0.93 |
| Illinois | $0.17 | $1.02 |
| Pennsylvania | $0.18 | $1.08 |
| Ohio | $0.17 | $1.02 |
| Washington | $0.115 | $0.69 |
About router modem combo running costs
Combined modem-router units usually stay on all day. Their wattage is small, but a 24-hour schedule matters to the yearly total.
Typical sizes: 8 W, 15 W, 25 W, 35 W.
How to spend less: Use the provider’s rated power as a guide and avoid frequent unnecessary restarts.
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 Alabama. 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.