How Much Does A Desktop Speakers Cost to Run in Arizona?
A desktop speakers typically uses 30 watts. At 4 hours a day and $0.15/kWh in Arizona, it costs about $0.018 per day, $0.54 per month and $6.57 per year.
Calculate your own cost
- Per hour
- $0.0050.03 kWh
- Per day
- $0.0180.12 kWh
- Per week
- $0.1260.84 kWh
- Per month (30 days)
- $0.543.6 kWh
- Per year
- $6.5743.8 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 30-watt desktop speakers cost per hour?
At $0.15/kWh, it costs $0.005 per hour. The maths: 30 W ÷ 1,000 = 0.03 kWh per hour, × $0.15 = $0.005.
How much does it cost per month?
Used 4 hours a day for 30 days, it costs about $0.54 per month and uses 3.6 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
0.12 kWh per day, 3.6 kWh per month and 43.8 kWh per year at 4 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?
Turn them off when the computer is not in use. 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 $0.36 and at 30¢ it is $1.08. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in Arizona
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.03 kWh | $0.005 | $0.135 | $1.64 |
| 2 hours | 0.06 kWh | $0.009 | $0.27 | $3.29 |
| 3 hours | 0.09 kWh | $0.014 | $0.405 | $4.93 |
| 4 hours | 0.12 kWh | $0.018 | $0.54 | $6.57 |
| 5 hours | 0.15 kWh | $0.023 | $0.675 | $8.21 |
| 6 hours | 0.18 kWh | $0.027 | $0.81 | $9.86 |
| 7 hours | 0.21 kWh | $0.032 | $0.945 | $11.50 |
| 8 hours | 0.24 kWh | $0.036 | $1.08 | $13.14 |
| 9 hours | 0.27 kWh | $0.041 | $1.22 | $14.78 |
| 10 hours | 0.3 kWh | $0.045 | $1.35 | $16.43 |
| 11 hours | 0.33 kWh | $0.05 | $1.49 | $18.07 |
| 12 hours | 0.36 kWh | $0.054 | $1.62 | $19.71 |
| 13 hours | 0.39 kWh | $0.059 | $1.76 | $21.35 |
| 14 hours | 0.42 kWh | $0.063 | $1.89 | $23.00 |
| 15 hours | 0.45 kWh | $0.068 | $2.03 | $24.64 |
| 16 hours | 0.48 kWh | $0.072 | $2.16 | $26.28 |
| 17 hours | 0.51 kWh | $0.077 | $2.30 | $27.92 |
| 18 hours | 0.54 kWh | $0.081 | $2.43 | $29.57 |
| 19 hours | 0.57 kWh | $0.086 | $2.57 | $31.21 |
| 20 hours | 0.6 kWh | $0.09 | $2.70 | $32.85 |
| 21 hours | 0.63 kWh | $0.095 | $2.84 | $34.49 |
| 22 hours | 0.66 kWh | $0.099 | $2.97 | $36.14 |
| 23 hours | 0.69 kWh | $0.104 | $3.11 | $37.78 |
| 24 hours | 0.72 kWh | $0.108 | $3.24 | $39.42 |
How we worked it out
- Energy per hour: 30 W ÷ 1,000 = 0.03 kWh
- Cost per hour: 0.03 kWh × $0.15 = $0.005
- Cost per day: × 4 hours = $0.018
- Month and year: × 30 days = $0.54, × 365 days = $6.57
Arizona electricity prices
Arizona pays about $0.15 per kWh, which is 14% lower than the US average of $0.175. The same desktop speakers would cost $0.63 a month at the national average.
What it costs in different places
Same 30-watt desktop speakers, 4 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $0.63 |
| California | $0.32 | $1.15 |
| Texas | $0.155 | $0.558 |
| New York | $0.25 | $0.90 |
| Florida | $0.155 | $0.558 |
| Illinois | $0.17 | $0.612 |
| Pennsylvania | $0.18 | $0.648 |
| Ohio | $0.17 | $0.612 |
| Washington | $0.115 | $0.414 |
About desktop speakers running costs
Desktop speakers draw different amounts depending on amplifier design and listening volume. Their rated output is not the same as average wall power.
Typical sizes: 10 W, 30 W, 60 W, 100 W.
How to spend less: Turn them off when the computer is not in use.
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 Arizona. 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.