Real Rate of Return

Macroeconomics
Updated Apr 2026 • Has calculator

An investment's return after subtracting the inflation rate.

What is Real Return?

The real rate of return measures how much an investment actually increases your purchasing power, after accounting for the erosive effect of inflation. The approximate formula simply subtracts inflation from the nominal return; the exact calculation uses the Fisher equation (see Real Interest Rate). For everyday investment analysis, the approximation is accurate when inflation is modest. Understanding real returns is essential for retirement planning: a 7% nominal return in a 4% inflation environment delivers only ~3% real growth in purchasing power, which determines whether your savings stay ahead of rising living costs.

Formula

Real Return ≈ Nominal Return − Inflation Rate

Worked Example

Worked example — S&P 500 Index — 2023

Full year 2023

Step 1  S&P 500 total return (nominal): +26.3% (price + dividends, 2023)
Step 2  US CPI inflation: +3.4% (BLS, December 2023)
Step 3  Real Return ≈ 26.3% − 3.4% = 22.9%
Step 4  → S&P 500 investors gained ~22.9% in real purchasing-power terms in 2023

Source: S&P Dow Jones Indices — S&P 500 Annual Returns / BLS CPI (2023-12-31)

Calculate Real Return

Annual investment return before inflation

Annual CPI inflation rate

Real Return

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Not investment advice.

How to Interpret Real Return

< 0
Negative Real Return — losing purchasing power
0 – 3
Low Real Return (0–3%) — modest purchasing-power gain
3 – 7
Solid Real Return (3–7%) — typical equity range
> 7
High Real Return (>7%) — exceptional performance

📚 Tax Basics — Complete the path

  1. Federal Income Tax
  2. Capital Gains Tax
  3. After-Tax Return
  4. Tax-Equivalent Yield
  5. Real Return
Sources
  1. S&P Dow Jones Indices — S&P 500
  2. BLS — Consumer Price Index
  3. Investopedia — Real Rate of Return