RETx RealEstate Tools
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Gross Rent Multiplier (GRM) Calculator

Compute GRM from annual gross rent and purchase price for fast comping and cross-market screening.

Who it helps: Investors, commercial teams, Realtors supporting investment clients

Decision: Is the purchase price reasonable against gross rent multiples?

Estimate details

Default scenario loaded. Adjust the assumptions below to match the property, client, or decision.

Preloaded scenarios

Tap a scenario to preload realistic assumptions, then tune the numbers for the specific property or client.

Comping assumptions

Core assumptions
Quick answer

Gross Rent Multiplier (GRM) Calculator helps investors, commercial teams, realtors supporting investment clients decide: Is the purchase price reasonable against gross rent multiples? It provides a transparent educational estimate with assumptions, warnings, source citations where applicable, and next steps for professional review.

How this tool should be used

Treat the output as a planning estimate. The useful number is the decision it unlocks: affordability range, cash needed, seller walkaway proceeds, investment risk, or marketing copy that is ready for human review.

Frequently asked questions

What is the Gross Rent Multiplier (GRM) Calculator?

Gross Rent Multiplier (GRM) Calculator is a Canadian real estate planning tool for investors, commercial teams, realtors supporting investment clients. It helps answer: Is the purchase price reasonable against gross rent multiples?

Are the results guaranteed?

No. Results are educational estimates only and are not legal, tax, mortgage, appraisal, accounting, investment, or financial advice. Confirm all numbers with qualified professionals.

Does this tool use Canadian assumptions?

Yes. The platform is designed for Canada-first calculations, province-aware source metadata, Canadian terminology, and rule freshness tracking.

Can I export or save the result?

The free workflow includes email and PDF-style report calls to action. Saved report storage and account dashboards can be layered on later without changing the public calculators.