How to use the appreciation calculator
Future value projects a home’s value forward:
- Enter the current value: a recent appraisal, the price of similar homes that sold nearby, or your purchase price if you just bought.
- Enter an appreciation rate per year. It is an assumption, so try several.
- Enter the number of years.
- Add an inflation rate to see the result in today’s dollars. Leave it empty to skip.
Historical rate works backwards. Enter what you paid, what the home is worth now and how many years you have owned it, and it returns the yearly compound appreciation rate. Add average inflation to see how much of that growth was real.
The formulas
Value in today's dollars = Future value ÷ (1 + i)n
Real appreciation rate = (1 + a) ÷ (1 + i) − 1V is the current value, a the yearly appreciation rate, i the yearly inflation rate and n the number of years.
Total appreciation = Current value ÷ Purchase price − 1
A worked example
Future value. A home worth $400,000 that appreciates 3% a year would be worth $537,567 in 10 years, a gain of $137,567 or 34.4%.
With inflation at 2.5%, that future price is worth $419,946 in today’s dollars. The real gain is $19,946, or 0.49% a year above inflation.
Historical rate. A home bought for $250,000 and now worth $400,000 after 12 years has risen 60.0% in total, which is 3.99% a year compounded. After 2.5% average inflation, real appreciation was 1.46% a year.
Small rate changes, large differences
Compounding makes the rate matter more the longer you look ahead:
| Appreciation per year | Value after 10 years |
|---|---|
| 1% | $441,849 |
| 3% | $537,567 |
| 5% | $651,558 |
Over 30 years, the same 3% rate would take the home to $970,905. Long projections like that are illustrations of compounding, not forecasts: local markets go through long flat or falling periods, and a decade of 5% growth in one city can coincide with no growth in another.
Nominal and real appreciation
Most of the rise in home prices over time reflects inflation. When everything else also costs more, a higher price for your home does not make you richer by the same amount. That is why the calculator shows the value in today’s dollars: in the example, the home is worth $137,567 more in future dollars but only $19,946 more in purchasing power.
Because long-run price growth has not been far above inflation, much of the financial benefit of owning usually comes from elsewhere: paying down a mortgage, living rent-free once it is paid off, and leverage: a 34.4% rise on the whole home is a much larger return on a 20% down payment. For a rental property, our rental property calculator combines appreciation with rent, costs and the mortgage.
What this calculator does not include
A single steady rate is a simplification. Actual values move unevenly and can fall for years at a time. The calculator also ignores what it costs to own the home in the meantime (property tax, insurance, maintenance and interest), the selling costs that come out of the gain, and the value added by renovations. A home whose value rose after a new kitchen has not appreciated by the full amount; part of the increase is money you put in.