Gross Rent Multiplier Calculator for Canada 2025

Quickly screen Canadian rental properties using the gross rent multiplier (GRM) metric.

GRM Calculator

Annual Gross Rent
Purchase Price
Gross Rent Multiplier (GRM)
GRM Assessment
Implied Value at Target GRM
Monthly Rent Needed for Target GRM

What Is the Gross Rent Multiplier?

The Gross Rent Multiplier (GRM) is a quick property screening metric that divides the property's purchase price by its annual gross rental income. It tells you how many years of gross rent it would take to pay for the property — a simple way to compare properties without needing detailed expense data.

GRM Formula:
GRM = Property Price ÷ Annual Gross Rent

Example: $650,000 property ÷ $36,000 annual rent = GRM of 18.1

How to Interpret GRM in Canada

GRMInterpretationTypical Canadian Market
Under 10xExcellent yieldSmall towns, distressed properties
10–14xGood yieldEdmonton, Winnipeg, Moncton
14–18xModerate — typical investment marketCalgary, Ottawa, Hamilton
18–22xHigh — appreciation-drivenMontreal, Halifax
22–30x+Very high — primarily appreciation playToronto, Vancouver

GRM by Canadian City 2025

CityAvg. Home Price (2BR)Avg. 2BR Rent/yrApprox. GRM
Vancouver$900,000$38,40023x
Toronto$750,000$33,60022x
Ottawa$580,000$27,60021x
Calgary$480,000$26,40018x
Edmonton$340,000$22,80015x
Winnipeg$290,000$20,40014x

GRM vs. Cap Rate: What's the Difference?

MetricUses Expenses?Financing?Best For
GRMNo — gross rent onlyExcludedQuick screening
Cap RateYes — NOI after expensesExcludedDetailed comparison
Cash-on-CashYes — after all costsIncludedActual return on cash
Use GRM for quick initial screening — if a property's GRM is way above the local market average, it's likely overpriced relative to income. Then drill into cap rate and cash flow for properties that pass the GRM screen.

Limitations of GRM

Using GRM to Find Undervalued Properties

If you know the local market GRM, you can work backwards to estimate what a property should be worth based on its rent:

Implied Value = Annual Gross Rent × Market GRM

Property generates $30,000/yr gross rent. Market GRM = 16.
Implied value = $30,000 × 16 = $480,000
If asking price is $420,000 — potentially undervalued.

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Conclusion

The gross rent multiplier is a fast, simple tool for comparing Canadian rental properties. A lower GRM means more rental income relative to price — generally better for cash flow investors. A higher GRM is common in appreciation markets like Toronto and Vancouver where investors accept lower yields for anticipated price growth. Use GRM to screen deals quickly, then validate with cap rate and detailed cash flow analysis before buying.