Adjust a nominal investment return for inflation and purchasing power.
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This calculator applies the displayed investment formula directly to your inputs. It keeps full precision during the calculation and rounds only the displayed result.
Real Return formulaReal return = (1+nominal) ÷ (1+inflation) − 1
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Using the default example values, the calculator substitutes 8 and 3 into the formula. Change the values to model your own scenario.
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Nominal return
Inflation rate
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6.4%
3%
3.3%
8%
3%
4.85%
9.6%
3%
6.41%
Hypothèses, interprétation ak erreurs cwallarantes
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The values entered for nominal return and inflation rate are accurate for the scenario.
Rates and recurring amounts remain constant for the period represented by the formula.
Provider fees, taxes and timing differences are excluded unless they are explicit inputs.
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Treat the main number as a planning estimate, not a quote, approval or guarantee.
Compare at least a baseline, lower and higher assumption before deciding.
Use the result together with the related investment calculators for a broader view.
Erreurs cwallarantes à éviter
Entering a percentage as a decimal when the field expects a whole percent.
Comparing results that use different time periods or omit different fees.
Rounding inputs early or treating an estimated rate as guaranteed.