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How Much Does It Cost to Run a Microwave in Canada? (2026)
Microwaves draw a lot of power but only for minutes at a time, so they are one of the cheapest ways to heat food. Note the rated cooking power is often lower than the wattage pulled from the wall.
A typical microwave (1,000 W) costs C$0.14 per hour, or about C$1.05 per month at 0.25 hours a day in Canada (average). Cheap to run
| Wattage | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| Low (700 W) | C$0.098 | C$0.025 | C$0.74 | C$8.94 |
| Typical (1,000 W) | C$0.14 | C$0.035 | C$1.05 | C$12.78 |
| High (1,500 W) | C$0.21 | C$0.053 | C$1.58 | C$19.16 |
Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 0.25 h/day ≈ 91 kWh per year.
In Canada, with electricity at C$0.14 per kWh (source: Canada Energy Regulator 2026 market snapshot, 2026-06), a typical microwave costs C$0.14 per hour and about C$12.78 per year at 0.25 hours a day. Each C$1.00 of electricity buys roughly 7.1 hours of use.
How to lower the cost of running a microwave
- Cover food so it heats evenly and faster.
- Use the microwave instead of the oven for reheating and small portions.
- Unplug it or use a switched outlet if the clock display bothers you. Standby draw can exceed cooking use over a year.
- Keep the interior clean. Food residue absorbs energy.
In standby it draws about 3 W, which adds roughly 26 kWh (C$3.68) per year if it is never unplugged.
Frequently asked questions
Does a microwave use a lot of electricity?
Per minute, yes. Per meal, no. Fifteen minutes a day at 1,000 W is only 0.25 kWh.
Does a microwave use electricity when not in use?
Yes, 2 to 4 watts for the clock and control panel. That adds up to 20 to 35 kWh per year.
Why does my 800 W microwave draw 1,200 W?
The rated figure is the cooking output. Converting mains power to microwaves is roughly 65 percent efficient.
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