Use the same billing period
Enter the number of days covered by the bills. A longer bill naturally costs more.
Ontario utility checker
Ontario Utility Bill Checker
Convert electricity, water, and gas bills into daily, monthly, and per-person estimates, then check whether the total looks low, typical, or high.
Before you calculate
Utility bills are hard to compare by dollar amount alone. Billing period, season, delivery charges, fixed fees, home size, heating type, and usage all matter.
This checker uses rough placeholder thresholds. Treat the low, typical, or high flag as a reason to review your bill, not as proof that something is wrong.
How to use this calculator
Look at usage after the estimate
The result converts dollars to daily and monthly costs, but your next step should be comparing kWh, cubic metres, or other usage units.
Compare by season
Winter gas heat and summer air conditioning can make a normal bill look unusual if you compare it with the wrong month.
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Enter utility bills
Ontario Utility Bill Checker
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Common mistakes
- Comparing a 35-day bill with a 28-day bill without converting to a daily amount.
- Looking only at the total and ignoring delivery, fixed, or regulatory charges.
- Comparing winter heating bills with shoulder-season bills.
- Ignoring leaks, HVAC issues, insulation, and thermostat changes.
- Assuming a high dollar amount always means high usage.
Coming soon: downloadable spreadsheet version
The calculator is free. A spreadsheet version may be added later for month-by-month bill tracking.
Sources and assumptions to verify
Low, typical, and high flags use editable placeholder thresholds in
data/assumptions.js. They are rough and should be improved
with Ontario benchmarks by season, home type, heating type, and utility mix.
- Ontario Energy Board: understanding your electricity bill
- Ontario Energy Board bill calculator
- Your electricity, gas, and water bills, including usage units and fixed charges
- Same-season bills from the previous year, if available
FAQ
Can this prove my bill is too high?
No. It uses rough placeholder thresholds. Compare usage, rates, fixed charges, weather, season, and home details before drawing conclusions.
Should I compare bill amount or usage?
Usage is usually better because delivery charges, fixed fees, taxes, and billing periods can change the dollar total.
Why does the billing period matter?
A longer bill period naturally looks higher. This tool converts the bill to daily and monthly estimates.
What should I check if my bill looks high?
Check usage, fixed charges, the same season last year, rate changes, leaks, HVAC, insulation, and thermostat settings.
Why are the low, typical, and high flags rough?
Homes vary by size, season, heating type, insulation, rate plan, and local utility charges. The thresholds need better benchmarking before launch.
Should water, gas, and electricity be compared together?
The combined total is useful for budgeting. For troubleshooting, review each bill separately and compare usage against the same season last year.
Disclaimer
This tool is for general informational purposes only. It is not financial, legal, tax, employment, or government advice. Confirm details with your employer, lender, government source, or qualified professional.
Last reviewed: July 28, 2026
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