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Inflation-adjusted return calculator

Compute the real (inflation-adjusted) return from a nominal return and inflation rate.

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Enter Nominal return (%), Inflation rate (%) and the Inflation-adjusted return calculator works out Real return straight away. For instance, with Nominal return (%) = 7 and Inflation rate (%) = 3 it returns Real return = 3.88%.

How to use it

  1. Enter your values: Nominal return (%), Inflation rate (%).
  2. Read the result instantly: Real return.

Frequently asked questions

How does the Inflation-adjusted return calculator work?

It takes Nominal return (%) and Inflation rate (%) and derives Real return from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

2 values: Nominal return (%) and Inflation rate (%). Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Nominal return (%) = 7 and Inflation rate (%) = 3, the calculator returns Real return = 3.88%. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

How much does the result change with different inputs?

It moves a lot. Using Nominal return (%) = 14 and Inflation rate (%) = 3.3 instead, Real return goes from 3.88% to 10.36% — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Nominal return (%) = 3.5 and Inflation rate (%) = 2.7, Real return comes out at 0.78%. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Comparing two investments that pay at different times, deciding whether a project clears its cost of capital, and sanity-checking a valuation someone else produced.

What is the most common mistake?

Trusting a valuation without asking what share of it comes from the terminal value. Past 70%, the answer is an assumption about the distant future dressed up as a calculation.

How accurate is it, and what are the limits?

Estimate only — not financial advice.

What is the difference between the Inflation-adjusted return calculator and the Inflation calculator?

This one returns Real return; the Inflation calculator returns Same value in future money and Today's buying power then. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Holding Period Return Calculator is the closest one after this: Measure the total return over a holding period from the beginning and ending value plus any income, with the annualised equivalent.

Further reading

All guides →
ComparisonReal vs Nominal Return: Why Subtracting Inflation Is the Wrong AnswerAt 7 percent nominal and 3 percent inflation the real return is 3.883 percent, not 4. The Fisher equation divides, it does not subtract — and over 30 years the shortcut overstates a $10,000 pot by $1,072.ExplainerHow Wrong Is Nominal Minus Inflation? Exactly One Year's Inflation WrongThe subtraction is not an approximation of the Fisher relation — it is the exact answer multiplied by (1 + i). At 8 percent nominal and 3 percent inflation the real return is 4.8544 percent, the shortcut says 5, and the error is exactly 3 percent of the answer. Always.ExplainerWhat a 1 Percent Fee Costs Over 30 YearsA one-point difference in annual charges turns $75,063 into $57,435 on the same $10,000. The fee costs more than the sum invested — here is why compounding does that.ExplainerThe 4 Percent Rule: What It Actually ClaimsSpending $40,000 a year needs $1,000,000 at 4 percent and $1,333,333 at 3 percent. Where the number came from, what it measured, and the four objections that matter.ComparisonRegulated Savings, a Euro Fund or a Fixed-Term Deposit: the Ranking Inverts TwiceThe product paying the second-highest headline rate finishes last, and the reason is a tax change that took effect in January 2026. The three French savings vehicles scored on identical criteria: rate, tax, net return, real return, and what each one costs you in access.ExplainerThe Sortino Denominator Nobody Agrees OnOn one twelve-month series the Sortino ratio is 7.7518 or 3.8759 depending only on whether the squared shortfalls are divided by all twelve months or by the three below target. The two conventions differ by exactly the square root of twelve over three, and they can rank two funds in opposite orders.
Inflation-adjusted return calculator — OneKitly