Cost to Run a 75-watt computer monitor for 4 hours in Florida
Running a 75-watt computer monitor for 4 hours uses 0.3 kWh and costs $0.047 at $0.155/kWh in Florida. Do that every day and it adds up to $1.40 a month.
Calculate your own cost
- Per hour
- $0.0120.08 kWh
- Per day
- $0.0470.3 kWh
- Per week
- $0.3262.1 kWh
- Per month (30 days)
- $1.409 kWh
- Per year
- $16.97110 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 75-watt computer monitor cost per hour?
At $0.155/kWh, it costs $0.012 per hour. The maths: 75 W ÷ 1,000 = 0.08 kWh per hour, × $0.155 = $0.012.
How much does it cost per month?
Used 4 hours a day for 30 days, it costs about $1.40 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 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?
Lower brightness and set it to sleep after a few minutes. 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 Florida
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.08 kWh | $0.012 | $0.349 | $4.24 |
| 2 hours | 0.15 kWh | $0.023 | $0.698 | $8.49 |
| 3 hours | 0.23 kWh | $0.035 | $1.05 | $12.73 |
| 4 hours | 0.3 kWh | $0.047 | $1.40 | $16.97 |
| 5 hours | 0.38 kWh | $0.058 | $1.74 | $21.22 |
| 6 hours | 0.45 kWh | $0.07 | $2.09 | $25.46 |
| 7 hours | 0.53 kWh | $0.081 | $2.44 | $29.70 |
| 8 hours | 0.6 kWh | $0.093 | $2.79 | $33.95 |
| 9 hours | 0.68 kWh | $0.105 | $3.14 | $38.19 |
| 10 hours | 0.75 kWh | $0.116 | $3.49 | $42.43 |
| 11 hours | 0.83 kWh | $0.128 | $3.84 | $46.67 |
| 12 hours | 0.9 kWh | $0.14 | $4.19 | $50.92 |
| 13 hours | 0.98 kWh | $0.151 | $4.53 | $55.16 |
| 14 hours | 1.05 kWh | $0.163 | $4.88 | $59.40 |
| 15 hours | 1.13 kWh | $0.174 | $5.23 | $63.65 |
| 16 hours | 1.2 kWh | $0.186 | $5.58 | $67.89 |
| 17 hours | 1.28 kWh | $0.198 | $5.93 | $72.13 |
| 18 hours | 1.35 kWh | $0.209 | $6.28 | $76.38 |
| 19 hours | 1.43 kWh | $0.221 | $6.63 | $80.62 |
| 20 hours | 1.5 kWh | $0.233 | $6.98 | $84.86 |
| 21 hours | 1.58 kWh | $0.244 | $7.32 | $89.11 |
| 22 hours | 1.65 kWh | $0.256 | $7.67 | $93.35 |
| 23 hours | 1.73 kWh | $0.267 | $8.02 | $97.59 |
| 24 hours | 1.8 kWh | $0.279 | $8.37 | $101.84 |
How we worked it out
- Energy per hour: 75 W ÷ 1,000 = 0.08 kWh
- Cost per hour: 0.08 kWh × $0.155 = $0.012
- Cost per day: × 4 hours = $0.047
- Month and year: × 30 days = $1.40, × 365 days = $16.97
Florida electricity prices
Florida pays about $0.155 per kWh, which is 11% lower than the US average of $0.175. The same computer monitor would cost $1.58 a month at the national average.
What it costs in different places
Same 75-watt computer monitor, 4 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 computer monitor running costs
LED monitors use 20 to 50 W. Larger and higher-refresh-rate screens use more.
Typical sizes: 20 W, 30 W, 50 W, 75 W.
How to spend less: Lower brightness and set it to sleep after a few minutes.
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 Florida. 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.