🏢 Real Estate
Gross Rent Multiplier Calculator
Screen rental property deals fast — enter price and gross annual rent to instantly calculate GRM.
🏠 Property Details
📊 GRM Results
Gross Rent Multiplier
Gross Annual Rent
Effective Annual Rent
💰 Monthly Gross Income
📆 Years to Repay (at GRM)
Gross rent only — no expenses
📌 5 GRM Tips
- ✓ Lower GRM = faster payback — a GRM of 5 means gross rent repays the price in 5 years (before expenses). A GRM of 15 means 15 years.
- ✓ Compare within the same market — GRM varies dramatically by city. A GRM of 12 in San Francisco might be normal; the same GRM in Detroit would be a red flag.
- ✓ GRM ignores expenses — it uses gross income only. A property with a GRM of 6 but 60% expense ratio may cash-flow worse than a GRM-10 property with 30% expenses. Always follow up with cap rate.
- ✓ Use GRM as a 60-second screen — scan 20 listings in minutes by dividing price by annual rent. Shortlist the best 3-5, then run full NOI and cash-on-cash analysis.
- ✓ Watch for below-market rents — a low GRM might mean the seller is undercharging rent. Raising rent to market after purchase can dramatically improve the actual return.
Disclaimer: This calculator provides estimates for educational purposes only and is not financial, tax, or investment advice. GRM is a screening metric that ignores operating expenses, financing, taxes, and appreciation. Always perform thorough due diligence and consult licensed professionals before investing.
Related Real Estate Investment Tools
GRM is the fastest screening metric, but serious investors pair it with cap rate, NOI, cash-on-cash return, and full rental property analysis before making an offer.
- Cap Rate Calculator: Go beyond GRM — calculate net operating income and cap rate to account for expenses.
- Rental Property Calculator: Project monthly cash flow, NOI, and 10-year returns for any rental property.
- NOI Calculator: Build a full net operating income statement — the expense-adjusted income that cap rate uses.
- Cash-on-Cash Return Calculator: Measure the annual cash return on your actual invested capital after financing.
- Rental Yield Calculator: Calculate gross and net rental yield percentages to compare properties across markets.
- Mortgage Calculator: Estimate monthly principal and interest for the loan on your investment property.
- Price Per Square Foot Calculator: Compare property values by price per sq ft to spot the best deal per unit of space.
- Payback Period Calculator: See how many years of rental income it takes to recover your upfront investment.
📚 Resources for Real Estate Investors
The 5 Tips above cover the math, but the best rental property investors pair GRM screening with the cash-flow, due-diligence, and tenant-management playbooks below.
🏘️ Real Estate Investing Beginner's Guide
How to underwrite your first rental — GRM, cap rate, cash-on-cash, and the 1% rule explained step by step.
🗝️ Landlord & Tenant Management Guide
Screening tenants, lease clauses, eviction flow, and the maintenance reserve rules that protect your GRM projection.
📊 Cap Rate Calculator
The next step after GRM screening — account for expenses and calculate the true capitalization rate.
🏠 Rental Property Calculator
Full deal analysis — cash flow, NOI, 10-year returns, and financing impact in one tool.