Prices rise over time, so the same amount of money buys less. Enter an amount and two years to see how much prices changed — and what your money is really worth — using official consumer price data for the United States, Spain and the euro area.
How the calculator works
We compare the average level of consumer prices in the two years you choose. If the price index was 100 in the first year and 130 in the second, prices rose 30%, so €100 then is roughly equivalent to €130 now. The “average per year” figure is the steady yearly rate that would produce the same total change.
Worked example
Say a weekly shop cost $100 in 2015. US consumer prices (CPI-U) averaged 237.0 in 2015 and 321.9 in 2025, a ratio of about 1.36. So the same shop would cost roughly $136 in 2025 — a 36% rise, or about 3.1% a year on average. Try it with your own numbers above.
Frequently asked questions
Why use annual averages instead of a single month?
Annual averages smooth out seasonal swings, such as summer travel or winter energy prices, so year-to-year comparisons are more reliable.
Does this tell me how much my own costs went up?
Not exactly. The index tracks a typical basket of goods and services. If you spend more than average on rent, energy or food, your personal inflation rate may be higher or lower.
Why is the latest year 2025?
The calculator uses complete calendar years. For the most recent monthly inflation rates, see The Economy in Charts.
What is the difference between CPI and HICP?
Both measure consumer prices. The HICP is the harmonised measure used across the European Union so countries can be compared; national CPIs can differ slightly in what they include.
Sources
- US Bureau of Labor Statistics — CPI-U, U.S. city average, all items (1982–84 = 100).
- INE (Spain) — Índice de Precios de Consumo, national, annual average (2021 = 100).
- Eurostat — HICP, euro area, annual average index (2015 = 100).
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Built by The Daily Economy editorial team with AI assistance. For general information only — not financial advice. Read our editorial policy and how we use AI.