Home energy & efficiency

Electricity Cost Calculator

Convert a device or appliance's power draw into an actual dollar estimate — daily, monthly, and yearly — at your own electricity rate.

1. Usage Details

Device/Appliance Power (W)

Hours Used Per Day

Your Electricity Rate ($/kWh)

2. Estimated Cost

kWh × rate

DAILY COST

$—

MONTHLY COST

$—

YEARLY COST

$—

Energy used: Enter usage details to see your energy cost.

Where to find your actual rate

Check a recent electricity bill for your all-in rate per kWh, including delivery and regulatory charges — the sticker price on your plan alone often understates the real cost.
Time-of-use rates vary by time of day — use your peak rate for a worst-case estimate, or your off-peak rate if you plan to shift usage.
Run this for your biggest appliances first (dryers, space heaters, A/C) — that's where the real savings usually are.

Cost per hour at typical rates

Ontario-style rate of ≈ 13.3¢/kWh — adjust for your actual bill rate.

Appliance	Power	¢ per hour	$ per hour
Portable space heater	1,500 W	20.0¢	$0.20
Window air conditioner	900 W	12.0¢	$0.12
Dehumidifier	500 W	6.7¢	$0.07
Refrigerator (average draw)	150 W	2.0¢	$0.02
LED bulb	10 W	0.13¢	$0.0013
Electric dryer	3,000 W	40.0¢	$0.40
Level 2 EV charger	7,200 W	96.0¢	$0.96

kWh = watts × hours ÷ 1,000. Check your utility bill for your exact rate (TOU rates vary by time of day).

⚡

Need an electrician for your project?

The Riley Group Electrical provides licensed, insured electrical services across Durham Region and the GTA. For panel upgrades, EV chargers, renovations, or troubleshooting, reach out today.

Licensed & insured ESA# 7011454 Durham Region & the GTA

Visit therileygroup4.com → ✉ Email Us