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How Much Does It Cost to Run a Computer Monitor in Canada? (2026)
A 24 inch office monitor draws around 20 to 30 watts. Large 4K or high-refresh gaming monitors can reach 60 to 80 watts, comparable to the computer they are attached to.
A typical computer monitor (30 W) costs C$0.004 per hour, or about C$1.01 per month at 8 hours a day in Canada (average). Cheap to run
| Wattage | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| Low (15 W) | C$0.002 | C$0.017 | C$0.50 | C$6.13 |
| Typical (30 W) | C$0.004 | C$0.034 | C$1.01 | C$12.26 |
| High (80 W) | C$0.011 | C$0.090 | C$2.69 | C$32.70 |
Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 8 h/day ≈ 88 kWh per year.
In Canada, with electricity at C$0.14 per kWh (source: Canada Energy Regulator 2026 market snapshot, 2026-06), a typical computer monitor costs C$0.004 per hour and about C$12.26 per year at 8 hours a day. Each C$1.00 of electricity buys roughly 238.1 hours of use.
How to lower the cost of running a computer monitor
- Lower brightness. Most monitors ship far brighter than needed indoors.
- Set the display to sleep after 5 to 10 minutes idle.
- Turn off a second monitor when not in use.
In standby it draws about 0.5 W, which adds roughly 4 kWh (C$0.61) per year if it is never unplugged.
Frequently asked questions
How much electricity does a monitor use per day?
About 0.25 kWh for 8 hours on a typical 30 watt monitor.
Do monitors use power when off?
About half a watt in standby.
Does a bigger monitor use more electricity?
Yes. Power scales roughly with screen area and brightness.
Cost by region
- United States (average)
- California
- Texas
- New York
- Florida
- Canada (average)
- United Kingdom
- Germany
- France
- Australia
- India