Ontario Electricity Bill Calculator
Updated 2026‑04‑22
Use this simple estimator to approximate your monthly electricity bill. Enter your usage and estimated charges. This tool is for education only, but it helps illustrate how the different components of an Ontario electricity bill add up.
Tip: Try different usage levels or pricing plans to see how costs change. Shifting heavy loads to off‑peak hours can noticeably reduce totals under Time‑of‑Use pricing.
What makes up an Ontario electricity bill?
An Ontario electricity bill includes several components, not just the electricity you use. The most visible part is the energy charge based on your kWh consumption, but several other charges contribute to the final total.
Most residential bills include:
- Energy charges — based on kWh used
- Delivery charges — cost of poles, wires, transformers, and system operations
- Global Adjustment (GA) — system‑wide cost recovery
- Regulatory charges
- HST
Because these components behave differently, your total bill can change even when your usage stays similar month to month.
Typical electricity usage in Ontario homes
Electricity usage varies widely depending on home type and heating method:
- Small apartment: 300–500 kWh per month
- Townhouse or small home: 600–900 kWh per month
- Large detached home: 1,200–2,000+ kWh per month
Electric heating can significantly increase winter usage. For the most accurate estimate, check the kWh value on your most recent bill.
Why two homes can have different bills
Two homes using the same amount of electricity can still have different bills because:
- Delivery charges vary by utility
- Households may choose different pricing plans (TOU, Tiered, ULO)
- Usage patterns differ (peak vs off‑peak hours)
- Seasonal weather affects heating and cooling loads