Calculate a property's price-to-rent ratio and see how vacancy and basic owner costs can change the first-pass screen.
Advanced options
Table of contents
How to use our Price-to-Rent Ratio Calculator
- Enter the Property price, Monthly rent per unit, Number of units, and Other monthly income for the property you want to compare.
- Open Advanced options if you want the adjusted view, then enter Expected empty time, Property tax, Insurance, HOA or condo fee, and Maintenance estimate.
- Click Calculate to see the Gross price-to-rent ratio first, followed by the Adjusted price-to-rent ratio after costs and yearly rent details.
- Sanity-check the output by comparing Yearly rent before costs with the rent you expect in a full year; if it looks too high, check Number of units and Other monthly income.
- Use the Gross ratio quick read as a rough screen only, then compare the adjusted results with local prices, financing, repairs, and your actual rent or ownership plan.
Definitions
Price-to-rent ratio: Property price divided by yearly rent. A lower ratio means the price is smaller compared with rent; a higher ratio means the price is larger compared with rent.
Gross price-to-rent ratio: The ratio before vacancy and owner costs. It is the familiar quick screen used in many housing comparisons [1].
Adjusted price-to-rent ratio after costs: The ratio after subtracting Expected empty time, Property tax, Insurance, HOA or condo fee, and Maintenance estimate from yearly rent.
Yearly rent before costs: Monthly rent from all units plus Other monthly income, multiplied by 12.
Yearly rent left after costs: Yearly rent after vacancy loss and the entered owner costs. It can be negative.
Gross rent yield: Yearly rent before costs divided by Property price, shown as percent per year.
Adjusted rent yield after costs: Yearly rent left after costs divided by Property price, shown as percent per year.
Common mistakes and quick fixes
Mistake: Entering the total building rent in Monthly rent per unit and also setting Number of units above 1.
Fix: Put rent for one unit in Monthly rent per unit, then use Number of units for the unit count.
Mistake: Using a monthly tax bill in Property tax.
Fix: Enter the yearly Property tax, or multiply the monthly amount by 12 first.
Mistake: Leaving Other monthly income out when parking, laundry, or storage income is part of the same property.
Fix: Add that monthly amount in Other monthly income if you want it included in Yearly rent before costs.
Mistake: Treating the Gross price-to-rent ratio as the final answer for a landlord decision.
Fix: Add Expected empty time and owner costs so you can compare it with the Adjusted price-to-rent ratio after costs.
Mistake: Typing Maintenance estimate as a dollar amount instead of a percent.
Fix: Enter Maintenance estimate as percent of price per year, such as 1 for 1% of the Property price.
Mistake: Ignoring a negative Yearly rent left after costs.
Fix: Review Property tax, Insurance, HOA or condo fee, Expected empty time, and Maintenance estimate because the entered costs are larger than rent after vacancy.
Limitations & Key Assumptions / Boundary Conditions
- This is a screening tool, not a full buy, rent, or investment model.
- The ratio uses Property price only. It does not include mortgage rate, down payment, closing costs, selling costs, income taxes, depreciation, rent growth, price growth, or time value of money.
- Advanced options use the values you enter. If Property tax, Insurance, HOA or condo fee, Expected empty time, or Maintenance estimate is wrong, the adjusted results will be wrong.
- Maintenance estimate is a simple percent of Property price per year. Actual repairs can be much higher or lower in a specific year.
- The Gross ratio quick read uses rough bands of under 15, 15 to 20, and over 20. Local markets can make those bands too low or too high for a real decision.
- If Yearly rent left after costs is zero or negative, the adjusted ratio is shown as not usable, but the signed yearly rent left and Adjusted rent yield after costs still show the cost pressure.
Methodology
Core rent calculation
The calculator first turns monthly rent into a yearly gross rent amount. Other monthly income is included because it is property income tied to the same price.
annual_gross_rent = (monthly_rent_per_unit * number_of_units + other_monthly_income) * 12
Gross ratio and yield
The gross price-to-rent ratio divides the Property price by Yearly rent before costs. Gross rent yield shows the same relationship as a percent per year.
gross_price_to_rent_ratio = property_price / annual_gross_rent
gross_rent_yield_percent = annual_gross_rent / property_price * 100
The Gross ratio quick read uses these rough bands: under 15 is lower price compared with rent, 15 to 20 is middle, and over 20 is higher price compared with rent. This is a first-pass screen, not a decision rule.
Adjusted layer
The adjusted layer subtracts expected lost rent and the owner costs entered in Advanced options.
vacancy_loss = annual_gross_rent * vacancy_percent / 100
annual_costs = annual_property_tax + annual_insurance + monthly_hoa * 12 + property_price * maintenance_percent / 100
adjusted_yearly_rent_after_costs = annual_gross_rent - vacancy_loss - annual_costs
If adjusted_yearly_rent_after_costs is greater than 0, the adjusted ratio is calculated. If it is zero or negative, the adjusted ratio is not shown as a normal ratio because dividing by zero or a negative rent amount does not work as a standard price-to-rent screen.
adjusted_price_to_rent_ratio = property_price / adjusted_yearly_rent_after_costs
adjusted_rent_yield_percent = adjusted_yearly_rent_after_costs / property_price * 100
Mini example
For a $300,000 property with $2,000 monthly rent, 1 unit, and no other income, Yearly rent before costs is $24,000. The Gross price-to-rent ratio is 300,000 / 24,000 = 12.5, and Gross rent yield is 8% per year.
With 5% Expected empty time, $3,600 Property tax, $1,200 Insurance, $100 monthly HOA or condo fee, and a 1% Maintenance estimate, vacancy loss is $1,200 and yearly owner costs are $9,000. Yearly rent left after costs is $13,800, so the Adjusted price-to-rent ratio after costs is about 21.74 and Adjusted rent yield after costs is 4.6% per year.