Inflation Impact Simulator: What Your Savings Will Really Be Worth
Calculate how inflation will silently erode the purchasing power of your savings over time. Adjust the starting amount, inflation rate, and horizon to see real future value.
What is inflation and why it matters
Inflation measures how prices for goods and services rise over time. If prices rise 3% annually and your savings earn 1%, you lose 2% of real purchasing power every year, even though the number in your bank account keeps climbing.
Though subtle month-to-month, inflation is devastating long term. €100,000 today with a constant 3% annual inflation rate retains only around €48,000 of real purchasing power after 25 years: you'd be able to buy less than half of what you can buy with it today.
How inflation impacts each type of asset
Cash and low-yield bank deposits are the most vulnerable. When deposit interest rates lag behind inflation, money sitting in an account loses purchasing power every day, even though its nominal balance never changes.
Broad equity index investments historically beat inflation over long horizons, though with volatility along the way. Real estate tends to hold its real value reasonably well, though it's illiquid. Gold has historically worked as a partial hedge, though with long stretches of flat performance.
When inflation spirals out of control: extreme cases
Example. Moderate 2%-3% annual inflation is manageable with a reasonable investment strategy. But history also offers examples of hyperinflation, where money loses almost all its value in months instead of decades: Weimar Germany in 1923, Zimbabwe in the 2000s, or Venezuela over the last decade are the most cited examples. In those episodes, people who held real assets (real estate, gold, stable foreign currency) preserved purchasing power; those who held local cash lost nearly everything. You can read the full analysis in our chapter on hyperinflation.
Strategies to protect your net worth
The best protection against inflation is owning assets whose value tends to grow above it over time: broad equity exposure through index ETFs, real estate, or inflation-linked bonds.
It's also key to always use real, not nominal, returns in your long-term projections. If our compound interest calculator shows you a 7% nominal return, subtract expected inflation (2%-3%) to get your real growth in purchasing power, which is the number that actually matters.
- Global equity index ETFs: historical real returns of roughly 5%-7% annually over the long term.
- Real estate: reasonable protection if rents or value keep pace with inflation.
- Inflation-linked bonds: protect the nominal amount against CPI but with low real yields.
- Cash: loses real value every year inflation exceeds its yield; keep it only as an emergency fund.
The role central banks play in inflation
Inflation doesn't appear out of nowhere: it's closely tied to monetary policy decisions. Understanding how central banks work and the role of Quantitative Easing and Quantitative Tightening helps explain why inflation rises or falls in each economic cycle, instead of treating it as an unpredictable phenomenon.
Apply This Knowledge to Your Real Finances
eXcenda combines net worth, expenses, simulations, and macro context into a single app so you can move from theory to action.
Frequently Asked Questions
Developed economies target around 2% annual inflation over the long term, though periods of supply shocks can drive it much higher, as seen with the 2022 peak in many countries.
No. The nominal amount is safe, but real purchasing power drops steadily if the deposit rate lags inflation. For horizons over five years, investing in growth-oriented assets is usually the better protection.
Divide the future amount by (1 + annual inflation) raised to the number of years, or more simply, use our inflation simulator to directly see the estimated purchasing power based on the amount, rate, and horizon you choose.
Because its price depends on supply and demand at any given moment, not solely on inflation. It has worked reasonably well as a hedge over very long horizons, but has had years-long stretches of flat performance even with positive inflation.
Moderate inflation (2%-5% annually) is manageable with a reasonable investment strategy. Hyperinflation (hundreds or thousands of percent a year) destroys the value of money in months, not decades, and usually requires shifting into real assets or stable foreign currency to preserve purchasing power.