How Much Does It Cost to Run a Computer Monitor in Newfoundland and Labrador? (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$0.005 per hour, or about C$1.12 per month at 8 hours a day in Newfoundland and Labrador. Cheap to run

Hours used per day
WattagePer hourPer dayPer monthPer year
Low 15 WC$0.002C$0.019C$0.56C$6.83
Typical 30 WC$0.005C$0.037C$1.12C$13.66
High 80 WC$0.012C$0.100C$2.99C$36.42

Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 8 h/day ≈ 88 kWh per year.

One day of a computer monitor (0.72 kWh) is the same electricity as

Electricity per year at typical use, on a log scale: #27 of 95 appliances, from least to most.

In Newfoundland and Labrador, with electricity at 15.6¢ per kWh (source: Hydro-Québec 2025 comparison, 2025-04), a typical computer monitor costs C$0.005 per hour and about C$13.66 per year at 8 hours a day. That is about 11% more than the national average for Canada (C$1.01 per month), because electricity in Newfoundland and Labrador costs 15.6¢ per kWh against 14.0¢ nationally. Each C$1.00 of electricity buys roughly 213.8 hours of use.

How to lower the cost of running a computer monitor

In standby it draws about 0.5 W, which adds roughly 4 kWh (C$0.68) 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

US states
Canadian provinces

Related appliances

Use the generic electricity cost calculator · Which uses more? Take the quiz