Price-to-Rent Ratio Calculator Formula

Understand the math behind the price-to-rent ratio calculator. Each variable explained with a worked example.

Formulas Used

Price-to-Rent Ratio

price_to_rent_ratio = home_price / annual_rent

Annual Rent

annual_rent_total = annual_rent

Rent as % of Price

rent_as_pct_of_price = (annual_rent / home_price) * 100

Variables

VariableDescriptionDefault
home_priceHome Purchase Price(USD)400000
monthly_rentComparable Monthly Rent(USD)2200
annual_rentDerived value= monthly_rent * 12calculated

How It Works

Price-to-Rent Ratio Analysis

The price-to-rent ratio helps determine whether buying or renting is more favorable in a given market.

Formula

Price-to-Rent Ratio = Home Price / Annual Rent

Interpretation

  • Below 15: Buying is generally favorable
  • 15 to 20: Closer to neutral; depends on personal factors
  • Above 20: Renting may be more cost-effective
  • Above 25: Strongly favors renting over buying
  • Worked Example

    A home costs $400,000 to buy, while comparable rentals cost $2,200 per month.

    home_price = 400000monthly_rent = 2200
    1. 01Annual rent: $2,200 x 12 = $26,400
    2. 02Price-to-rent ratio: $400,000 / $26,400 = 15.2
    3. 03Rent as % of price: $26,400 / $400,000 x 100 = 6.60%
    4. 04A ratio of 15.2 is in the neutral zone, slightly favoring buying

    Ready to run the numbers?

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