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Electricity Cost Calculator Ontario

Reviewed by Calculator Editorial Team

Calculate your monthly electricity costs in Ontario using this free calculator. Simply enter your electricity usage and select your rate plan to get an accurate estimate of your monthly bill.

How to Use This Calculator

Using our electricity cost calculator for Ontario is simple:

  1. Enter your monthly electricity usage in kilowatt-hours (kWh)
  2. Select your electricity rate plan from the dropdown menu
  3. Click "Calculate" to see your estimated monthly cost
  4. Review the breakdown of your costs and any applicable taxes

The calculator provides an estimate based on current Ontario electricity rates. For precise billing, always refer to your electricity provider's actual invoice.

Formula Used

Monthly Electricity Cost = (Usage × Rate) + (Usage × Rate × Tax Rate)

Where:

  • Usage = Monthly electricity consumption in kWh
  • Rate = Cost per kWh for your selected plan
  • Tax Rate = 13% Ontario Energy Tax

This formula accounts for both the base electricity cost and the Ontario Energy Tax that applies to all residential and small business customers.

Worked Example

Let's calculate the cost for a household using 1,000 kWh per month on the standard Ontario Hydro rate plan:

Monthly Cost = (1,000 × $0.125) + (1,000 × $0.125 × 0.13)

= $125 + $16.25

= $141.25

So a household using 1,000 kWh per month would pay approximately $141.25 after taxes.

Ontario Electricity Rates

Electricity rates in Ontario vary by provider and plan type. Here are some common rate structures:

Provider Plan Type Rate (cents/kWh) Contract Length
Ontario Hydro Standard 12.5 No contract
Ontario Hydro Time-of-Use 8.5 (off-peak) No contract
Enbridge Fixed 10.5 12 months
Hydro One Variable 11.5 No contract

Note: These are approximate rates and may vary by location and season. Always check with your electricity provider for current rates.

Frequently Asked Questions

How accurate is this electricity cost calculator for Ontario?
This calculator provides an estimate based on current Ontario electricity rates. For precise billing, always refer to your electricity provider's actual invoice.
Does this calculator include all Ontario electricity taxes?
Yes, the calculator includes the 13% Ontario Energy Tax that applies to all residential and small business customers.
Can I use this calculator for commercial properties in Ontario?
This calculator is designed for residential and small business customers. Commercial properties may have different rate structures and tax requirements.