MONEY · EXPLORER 02 REAL RETURN

What is your investment return
actually worth after inflation?

Compare nominal growth with its value in today’s dollars using hypothetical constant annual return and inflation assumptions.

YOUR ASSUMPTIONS
USD
%
-20%30%
%
-5%20%
years
150 years

Your financial inputs stay on your device.

INFLATION-ADJUSTED ENDING VALUEIn 20 years

$214,255

Value in today’s dollars

Nominal ending value$386,968
Exact real annual return3.88%

Before taxes and fees.

Nominal and inflation-adjusted value over time

USD · annual compounding
Nominal and inflation-adjusted investment valuesNominal value ends at $386,968. Value in today’s dollars ends at $214,255. Exact yearly values are available below.$0$100K$200K$300K$400KTodayYear 10Year 20
Nominal valueValue in today’s dollars

Nominal: $386,968 · Today’s dollars: $214,255

View yearly values
Year-by-year values in USD
YearNominal valueBase · today’s dollars
0$100,000.00$100,000.00
1$107,000.00$103,883.50
2$114,490.00$107,917.81
3$122,504.30$112,108.79
4$131,079.60$116,462.53
5$140,255.17$120,985.34
6$150,073.04$125,683.80
7$160,578.15$130,564.73
8$171,818.62$135,635.20
9$183,845.92$140,902.59
10$196,715.14$146,374.54
11$210,485.20$152,058.98
12$225,219.16$157,964.19
13$240,984.50$164,098.72
14$257,853.42$170,471.48
15$275,903.15$177,091.74
16$295,216.37$183,969.08
17$315,881.52$191,113.52
18$337,993.23$198,535.40
19$361,652.75$206,245.51
20$386,968.45$214,255.05
Hypothetical constant-rate scenario · Before taxes and fees

UNDERSTAND THE CHANGE

Nominal growth.
Real purchasing power.

A nominal return tells you how the number of dollars changes. A real return adjusts that growth for inflation, showing what the ending value is worth in today’s dollars.

Both returns and inflation compound. For that reason, nominal return minus inflation is only an approximation. This explorer uses the exact relationship between them.

Try zero inflation to make the nominal and real ending values equal. Try equal nominal return and inflation to see a 0% real annual return. A negative inflation assumption increases the value measured in today’s dollars.

Compare one assumption at a time to isolate the effect of nominal return, inflation, or the time horizon.

THE MATH, IN THE OPEN

How we calculate it

Real annual return = (1 + nominal return) ÷ (1 + inflation) − 1
Nominal ending value = starting amount × (1 + nominal return)years
Value in today’s dollars = nominal ending value ÷ (1 + inflation)years

Rates are converted to decimals before calculation: 7% = 0.07. Internal calculations are not rounded; displayed values are.

At 7% nominal return and 3% inflation for 20 years, $100,000 becomes about $386,968 nominally and $214,255 in today’s dollars. The exact real annual return is about 3.88%.

Assumptions & limitations

Constant annual nominal return and inflation, annual compounding, no deposits or withdrawals, and no taxes or fees. USD is the unit of account.

Actual returns and inflation vary and can be volatile. The defaults are illustrative assumptions, not current data, a forecast, or investment advice.

Sources & calculation standards

The exact real-return calculation follows the standard inflation adjustment described by the U.S. Securities and Exchange Commission’s Investor.gov glossary. Inflation context is supported by the U.S. Bureau of Labor Statistics CPI FAQ. No live or historical data is used.

Calculations run locally in deterministic TypeScript functions with automated tests. Read our methodology and editorial standards.

Methodology version 0.1 · Reviewed September 29, 2026