How much does it cost to run a computer monitor?
The same computer monitor costs $18 a year in Hawaii (40.40 ¢ per kWh) and $5 in North Dakota (11.82 ¢), a gap of $13 or 3.4 times. Model range at 17.23 ¢: $5.49 to $15.65 a year (1,599 listed).
Map
- $5.31 to $5.94
- $5.94 to $6.68
- $6.68 to $7.23
- $7.23 to $10.24
- $10.24 to $18.16
Darker = costlier to run computer monitor. Click a state for its hub.
Your numbers
All 51 states
| 1 | Hawaii | 40.40 | $18.16 | $12.88 | $36.70 | $1.51 | 28 |
|---|---|---|---|---|---|---|---|
| 2 | California | 31.35 | $14.09 | $9.99 | $28.48 | $1.17 | 8 |
| 3 | Massachusetts | 30.41 | $13.67 | $9.70 | $27.63 | $1.14 | 17 |
| 4 | Rhode Island | 29.48 | $13.25 | $9.40 | $26.78 | $1.10 | 17 |
| 5 | Connecticut | 29.31 | $13.17 | $9.34 | $26.63 | $1.10 | 11 |
| 6 | Maine | 27.69 | $12.45 | $8.83 | $25.15 | $1.04 | 6 |
| 7 | New York | 26.39 | $11.86 | $8.41 | $23.97 | $0.99 | 9 |
| 8 | Alaska | 26.11 | $11.74 | $8.32 | $23.72 | $0.98 | 17 |
| 9 | New Hampshire | 24.53 | $11.03 | $7.82 | $22.28 | $0.92 | 6 |
| 10 | Vermont | 22.79 | $10.24 | $7.27 | $20.70 | $0.85 | 1 |
| 11 | New Jersey | 22.48 | $10.10 | $7.17 | $20.42 | $0.84 | 10 |
| 12 | District of Columbia | 21.92 | $9.85 | $6.99 | $19.91 | $0.82 | 8 |
| 13 | Michigan | 20.03 | $9.00 | $6.39 | $18.20 | $0.75 | 16 |
| 14 | Maryland | 19.53 | $8.78 | $6.23 | $17.74 | $0.73 | 11 |
| 15 | Pennsylvania | 19.29 | $8.67 | $6.15 | $17.52 | $0.72 | 13 |
| 16 | Wisconsin | 18.08 | $8.13 | $5.76 | $16.42 | $0.68 | 24 |
| 17 | Illinois | 17.67 | $7.94 | $5.63 | $16.05 | $0.66 | 10 |
| 18 | Delaware | 17.15 | $7.71 | $5.47 | $15.58 | $0.64 | 14 |
| 19 | Ohio | 16.90 | $7.60 | $5.39 | $15.35 | $0.63 | 22 |
| 20 | Alabama | 16.09 | $7.23 | $5.13 | $14.62 | $0.60 | 14 |
| 21 | Indiana | 15.96 | $7.17 | $5.09 | $14.50 | $0.60 | 30 |
| 22 | Minnesota | 15.83 | $7.12 | $5.05 | $14.38 | $0.59 | 15 |
| 23 | Colorado | 15.69 | $7.05 | $5.00 | $14.25 | $0.59 | 22 |
| 24 | Oregon | 15.46 | $6.95 | $4.93 | $14.04 | $0.58 | 7 |
| 25 | Texas | 15.40 | $6.92 | $4.91 | $13.99 | $0.58 | 16 |
| 26 | West Virginia | 15.39 | $6.92 | $4.91 | $13.98 | $0.58 | 40 |
| 27 | Virginia | 15.28 | $6.87 | $4.87 | $13.88 | $0.57 | 11 |
| 28 | Arizona | 15.26 | $6.86 | $4.87 | $13.86 | $0.57 | 14 |
| 29 | Florida | 15.21 | $6.84 | $4.85 | $13.82 | $0.57 | 16 |
| 30 | South Carolina | 15.12 | $6.80 | $4.82 | $13.74 | $0.57 | 11 |
| 31 | New Mexico | 14.85 | $6.68 | $4.73 | $13.49 | $0.56 | 16 |
| 32 | Georgia | 14.74 | $6.63 | $4.70 | $13.39 | $0.55 | 15 |
| 33 | Kansas | 14.44 | $6.49 | $4.60 | $13.12 | $0.54 | 15 |
| 34 | Mississippi | 14.03 | $6.31 | $4.47 | $12.75 | $0.53 | 17 |
| 35 | North Carolina | 14.00 | $6.29 | $4.46 | $12.72 | $0.52 | 13 |
| 36 | Iowa | 13.62 | $6.12 | $4.34 | $12.37 | $0.51 | 13 |
| 37 | Wyoming | 13.37 | $6.01 | $4.26 | $12.15 | $0.50 | 37 |
| 38 | South Dakota | 13.32 | $5.99 | $4.25 | $12.10 | $0.50 | 7 |
| 39 | Missouri | 13.30 | $5.98 | $4.24 | $12.08 | $0.50 | 29 |
| 40 | Nevada | 13.26 | $5.96 | $4.23 | $12.05 | $0.50 | 13 |
| 41 | Tennessee | 13.22 | $5.94 | $4.21 | $12.01 | $0.50 | 13 |
| 42 | Oklahoma | 13.21 | $5.94 | $4.21 | $12.00 | $0.49 | 13 |
| 43 | Washington | 13.17 | $5.92 | $4.20 | $11.96 | $0.49 | 5 |
| 44 | Kentucky | 13.13 | $5.90 | $4.19 | $11.93 | $0.49 | 35 |
| 45 | Utah | 13.02 | $5.85 | $4.15 | $11.83 | $0.49 | 29 |
| 46 | Montana | 12.99 | $5.84 | $4.14 | $11.80 | $0.49 | 22 |
| 47 | Arkansas | 12.87 | $5.79 | $4.10 | $11.69 | $0.48 | 20 |
| 48 | Louisiana | 12.52 | $5.63 | $3.99 | $11.37 | $0.47 | 16 |
| 49 | Nebraska | 12.05 | $5.42 | $3.84 | $10.95 | $0.45 | 21 |
| 50 | Idaho | 11.83 | $5.32 | $3.77 | $10.75 | $0.44 | 6 |
| 51 | North Dakota | 11.82 | $5.31 | $3.77 | $10.74 | $0.44 | 26 |
45 kWh a year times each state's 2025 home price (1599 monitors, ENERGY STAR data as of 2 Oct 2026).
CSVPay less
- Model spread: 10th percentile 32 kWh, 90th 91; the 59 kWh gap is $10.16 a year at 17.23 ¢ and $23.82 at 40.40 ¢ (Hawaii).
- Location: 3.4 times between Hawaii ($18.16) and North Dakota ($5.31); 100% of utilities in Hawaii list a time-of-use rate (EIA-861).
Where the kWh comes from
Total annual energy of the ENERGY STAR monitor listing. Median 45 kWh, 10th to 90th percentile 32 to 91, range 11 to 403, 1,599 monitors. Certified models only. Method: appliance hub.
Sources
| Source | Retrieved |
|---|---|
| ENERGY STAR Certified products | 2 Oct 2026 |
| EIA retail sales | 26 Oct 2026 |
| EPA eGRID2023 | 2 Oct 2026 |
| DOE formula | 2 Oct 2026 |
More
a ceiling fan, a desktop computer, a laptop, all appliances, EV charging, calculators.
Questions
Cost to run a computer monitor for a year?
$7.74 at 17.23 ¢ and 45 kWh; $5.31 in North Dakota to $18.16 in Hawaii.
Most expensive state for a computer monitor?
Hawaii: $18.16 at 40.40 ¢.
Cheapest state for a computer monitor?
North Dakota: $5.31 at 11.82 ¢.
kWh used by a computer monitor?
Median 45; 10th to 90th percentile 32 to 91; 1,599 monitors.
Does the model matter for a computer monitor?
Yes: 90th against 10th percentile is $10.16 a year at the U.S. price.
CO2 from a computer monitor?
16 kg a year at 0.348 kg per kWh (U.S.).
Why would my computer monitor bill differ?
Median 45 kWh is for new certified models; 17.23 ¢ is an average.
Fixed charges in the computer monitor cost?
Not included.