Inflation-Adjusted Return Calculator
Discover the true growth of your investments. Calculate your real return, inflation-adjusted future value, and the hidden cost of inflation on your purchasing power.
Return Details
Enter your return and inflation rates.
The headline return before adjusting for inflation.
UK CPI inflation averages around 2-3% historically.
Return Analysis
Real Return Rate
4.85%
A nominal return of 8.00% with 3.00% inflation results in a real return of 4.85%.
Nominal Return
8.00%
Inflation Rate
-3.00%
About This Calculator
When you invest money, the headline number you see is the nominal return. However, this number does not tell the whole story. Because the cost of living generally increases over time due to inflation, the actual purchasing power of your money grows slower than the nominal return suggests.
This inflation-adjusted return calculator uses the Fisher Equation to determine your real return - the actual increase in your purchasing power. Whether you are evaluating a savings account, a stock portfolio, or a long-term bond, understanding your inflation-adjusted return is critical to ensuring you are actually building wealth, not just treading water.
Use the Future Value tab to see the stark difference between nominal and real growth over time, or the Purchasing Power tab to understand exactly what inflation does to money left uninvested.
How to Use This Calculator
- 1
Choose your analysis type
Select 'Real Return' to find the inflation-adjusted rate of return, 'Future Value' to see what your investment will be worth in real terms, or 'Purchasing Power' to see how much today's money erodes over time.
- 2
Enter your nominal return
This is the headline return rate quoted by your investment - for example, a savings account interest rate or a fund's historical annual return. Do not adjust it for inflation yourself; the calculator does that.
- 3
Enter the annual inflation rate
Enter the expected average inflation rate over the period. UK CPI inflation has historically averaged around 2-3% per year. Use a current estimate for forward-looking projections.
- 4
Add investment amount and years (optional)
For the Future Value and Purchasing Power tabs, enter your initial investment amount and the number of years to project. The results will show both nominal and real figures side by side.