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Ontario Electricity Cost Calculator

Reviewed by Calculator Editorial Team

Calculate your monthly Ontario electricity costs with our free calculator. Estimate your electricity bill based on your usage, plan type, and current rates. Compare different electricity plans and understand how your consumption affects your costs.

How to Use This Calculator

Using our Ontario electricity cost calculator is simple:

  1. Enter your monthly electricity usage in kilowatt-hours (kWh)
  2. Select your electricity plan type (On-Peak, Off-Peak, or Time-of-Use)
  3. Choose your service provider (Hydro One, OPG, or other)
  4. Click "Calculate" to see your estimated monthly cost

The calculator will display your estimated monthly electricity bill based on the inputs you provide. You can then compare different scenarios or plans to find the most cost-effective option.

Formula Used

The calculator uses the following formula to estimate your monthly electricity cost:

Monthly Cost = (Usage × Rate) + Fixed Charge

  • Usage - Your monthly electricity consumption in kWh
  • Rate - The cost per kWh for your selected plan
  • Fixed Charge - The monthly service fee for your plan

For Time-of-Use plans, the calculator applies different rates for On-Peak and Off-Peak hours. The actual rates may vary depending on your service provider and current pricing.

Worked Example

Let's calculate the cost for a household using 1,200 kWh per month on an On-Peak plan with Hydro One.

Example Calculation:

Monthly Cost = (1,200 kWh × $0.12/kWh) + $12.50 fixed charge

= $144 + $12.50

= $156.50 per month

This example shows that a household using 1,200 kWh per month on an On-Peak plan with Hydro One would pay approximately $156.50 per month.

Plan Comparison

Compare different electricity plans to find the most cost-effective option for your needs.

Plan Type Rate (cents/kWh) Fixed Charge Estimated Cost (1,200 kWh)
On-Peak 12.0 $12.50 $156.50
Off-Peak 8.5 $10.00 $110.00
Time-of-Use 10.0 (On-Peak), 6.5 (Off-Peak) $15.00 $135.00

This comparison shows that the Off-Peak plan is the most cost-effective for a household using 1,200 kWh per month, while the Time-of-Use plan offers a balance between cost and flexibility.

Frequently Asked Questions

How accurate is the Ontario electricity cost calculator?
The calculator provides an estimate based on average rates and assumptions. For precise billing, refer to your electricity provider's actual rates and billing statements.
Can I use this calculator for commercial properties?
This calculator is designed for residential electricity costs. Commercial properties may have different pricing structures and should use their provider's specific calculator.
How often should I review my electricity plan?
It's recommended to review your electricity plan at least once a year or when you notice significant changes in your usage patterns or when new plans become available.
Are there any hidden costs in electricity bills?
Yes, electricity bills may include additional charges such as taxes, environmental levies, and distribution fees. These are typically included in the fixed charge or shown separately on your bill.
Can I save money by switching electricity providers?
Yes, switching providers can sometimes result in lower rates, especially if you shop around during rate changes or promotions. However, always compare the total cost including any early termination fees.