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Real vs. Nominal Return: What You Actually Keep After Inflation

6 min readCompound

Key takeaways

Your portfolio grew 8% in a year. Great? It depends. If goods and services rose by 3%, you only got roughly 5% richer in real terms. Nominal return is the raw number; real return is what truly remains after inflation — and only the second one counts.

What nominal and real return mean

Nominal return is the appreciation you see on your statement — how many percent were added. Real return is that number after subtracting inflation. It shows whether you can actually buy more with your money than before. And that is what investing is about — not a big number, but purchasing power.

How to calculate it

As a rough approximation, simply subtract inflation from the nominal return:

(The precise formula is slightly more involved, but this simple subtraction is good enough for orientation.)

Why a savings account is deceptive: nominally it credits a small interest rate, so it looks safe. But when inflation exceeds the rate, your real return is negative — the number grows on paper while purchasing power falls. It is a silent loss you cannot see on your statement.

Why stocks

The main reason to accept the volatility of stocks is precisely the real return. Broad equity indices have historically offered positive real appreciation (in the order of 5–7% per year after inflation over long periods) — the power that truly builds wealth. A savings account typically only helps preserve real value, not multiply it.

Think in real numbers

When you plan retirement income or a goal 20 years out, calculate in today's money. "I will have 5 million" sounds nice, but in 20 years with inflation those millions will have different purchasing power. That is why the growth projection has a real-value toggle — so you see the true result, not just a large nominal number. How inflation works is also explained in the article on saving vs. investing.

FAQ

What is the difference between nominal and real return?

Nominal return is gross appreciation as shown on your statement. Real return is that figure after subtracting inflation — it shows whether you can actually buy more. For true wealth building only real return counts.

How do I quickly calculate real return?

As a quick approximation subtract inflation from the nominal return. At 8% appreciation and 3% inflation, real return is roughly 5%. The precise formula is a little more complex, but this subtraction is good enough for orientation.

Can real return be negative?

Yes, and often is — for example with a savings account whose interest rate is lower than inflation. Then money nominally grows but its purchasing power falls. It is a silent loss you cannot see directly on your statement.

Why choose stocks because of real return?

Because broad equity indices have historically offered positive real returns (roughly 5–7% per year after inflation over long periods), while a savings account mainly just preserves real value. Positive real appreciation is the main reason to accept the volatility of stocks.

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