How this inflation calculator works
Use it as an inflation calculator, purchasing power calculator, or future inflation calculator for quick planning estimates.
Inflation and purchasing power
Inflation reduces what the same amount of money can buy over time. Purchasing power compares the real value of money across different years, so a nominal amount can be translated into a more useful planning estimate.
Past mode estimates what an old amount is worth today. Future mode estimates how much may be needed to maintain the same buying power later. The year by year table helps show how inflation compounds over time.
Inflation calculator example
For example, enter €10,000, set the start year to 2000, use a 2.5% inflation rate and keep Past to Present mode active. The calculator estimates the inflation adjusted value based on these inputs.
The result changes when the inflation rate or time horizon changes because more years and higher rates compound into a larger price-level adjustment.
Methodology
The calculator uses adjusted amount = original amount x (1 + inflation rate) ^ years. Past to Present mode compares a historical amount with today. Present to Future mode estimates how much money may be needed in a target year to keep similar purchasing power.
The rate is treated as a constant average annual inflation assumption, and inflation compounds year after year. Real inflation varies by country, year and spending category, so results are estimates for planning only and are not financial advice.
Choosing an inflation rate
For historical comparisons, start with an official consumer price index or inflation series for the country you are modeling, such as a national statistics office, central bank or Eurostat-style source.
For future planning, avoid treating one number as a forecast. Test low, moderate and high assumptions, then use the range to decide whether a savings target or cash buffer needs more margin.
What this calculator does not include
The calculator does not pull live CPI data, choose a country-specific basket, forecast future prices, model taxes, account fees or investment returns. It only applies the rate you enter consistently over the selected years.
Use the result as a purchasing-power estimate, then refine the target with a calculator that matches your next decision.
Inflation calculator guide
Learn how to read the results, compare past and future values, and decide which inflation rate is reasonable for your planning horizon.
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How inflation affects savings
Inflation can quietly reduce cash purchasing power even when your nominal balance is unchanged or growing slowly.
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What is inflation?
Review the basics of inflation, why prices rise, and how inflation changes the real value of money over time.
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Inflation rate explained
Understand what an inflation rate measures and why different rates can lead to very different long-term projections.
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Plan a savings target
Once you understand your future target, estimate the monthly saving needed to reach it.
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Check your cash buffer
Use the emergency fund calculator when inflation changes how much accessible cash feels sufficient.
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Compare with future value
Project a known contribution plan, then compare nominal growth with inflation-adjusted purchasing power.
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