Inflation Calculator
See how inflation erodes purchasing power over time. Uses historical US CPI data from 2000–2025, or enter a custom rate. Calculates equivalent future value, past value, and year-by-year purchasing power table.
📅 Historical CPI data 2000–2025 (BLS) — updated January 2026📊 US Historical Inflation Rates
Year CPI Rate Year CPI Rate
2000 3.4%
2001 2.8%
2002 1.6%
2003 2.3%
2004 2.7%
2005 3.4%
2006 3.2%
2007 2.8%
2008 3.8%
2009 -0.4%
2010 1.6%
2011 3.2%
2012 2.1%
2013 1.5%
2014 1.6%
2015 0.1%
2016 1.3%
2017 2.1%
2018 2.4%
2019 1.8%
2020 1.2%
2021 4.7%
2022 8.0%
2023 4.1%
2024 2.9%
2025 3.0%
| Year | CPI Rate | Year | CPI Rate |
|---|---|---|---|
| 2000 | 3.4% | 2001 | 2.8% |
| 2002 | 1.6% | 2003 | 2.3% |
| 2004 | 2.7% | 2005 | 3.4% |
| 2006 | 3.2% | 2007 | 2.8% |
| 2008 | 3.8% | 2009 | -0.4% |
| 2010 | 1.6% | 2011 | 3.2% |
| 2012 | 2.1% | 2013 | 1.5% |
| 2014 | 1.6% | 2015 | 0.1% |
| 2016 | 1.3% | 2017 | 2.1% |
| 2018 | 2.4% | 2019 | 1.8% |
| 2020 | 1.2% | 2021 | 4.7% |
| 2022 | 8.0% | 2023 | 4.1% |
| 2024 | 2.9% | 2025 | 3.0% |
What Inflation Means for Your Money
Inflation is one of the most important forces in personal finance, yet it's invisible until you notice that the same grocery cart costs 20% more than it did three years ago. At the Federal Reserve's 2% inflation target, prices double in approximately 35 years. At the 3.1% historical US average, they double in 23 years. At the 9.1% peak of June 2022, prices would have doubled in under 8 years.
The practical impact: $500,000 in retirement savings earning 0% (stuffed under a mattress) loses roughly half its purchasing power in 23 years at average historical inflation. In contrast, $500,000 invested at 7% real return (S&P 500 historical average after inflation) grows to approximately $1.93 million in real purchasing power over the same period.
Wage inflation matters too — if your salary increases by 3% but inflation is 4%, your real purchasing power declined 1% that year. Real wage growth (nominal wage growth minus inflation) is the true measure of whether you're getting ahead financially.
How to Protect Your Money Against Inflation
Stocks and equity index funds are the most powerful long-term inflation hedge. The S&P 500 has returned approximately 10.5% nominal (7%+ real, after inflation) annually since 1926. Companies can raise prices during inflation, protecting revenues and shareholder value. Index funds like VTSAX or SPY provide diversified equity exposure with minimal cost.
TIPS (Treasury Inflation-Protected Securities) are US government bonds where both the principal and interest adjust with CPI inflation. If CPI rises 5%, your TIPS principal rises 5% too. They're lower return than stocks but provide guaranteed inflation protection. Available directly at TreasuryDirect.gov or through bond ETFs (VTIP, SCHP).
Series I Bonds (I-bonds) from the US Treasury pay a rate combining a fixed rate plus the CPI-U inflation rate, reset every 6 months. Purchase limit of $10,000/year per person ($5,000 additional with tax refund). Must hold for 1 year minimum; 3-month interest penalty if redeemed before 5 years.
Real estate has historically kept pace with or slightly beat inflation, as property values and rents tend to rise with the general price level. However, real estate requires significant capital, is illiquid, and has high transaction costs.
Avoid holding large amounts in low-yield cash long-term. A high-yield savings account (HYSA) earning 4.5–5% APY is a reasonable short-term inflation hedge; traditional savings at 0.5% is not.
Frequently Asked Questions
What is the difference between CPI and PCE inflation?
Both measure consumer price inflation but differ in methodology. CPI (Consumer Price Index) measures price changes for a fixed basket of goods based on household surveys. PCE (Personal Consumption Expenditures) reflects actual consumer spending patterns, updates its basket more frequently, and tends to run 0.3–0.5% lower than CPI. The Federal Reserve officially targets 2% PCE inflation (not CPI), which is why the Fed's target seems lower than the CPI numbers typically reported in the news.
Is some inflation actually good?
Yes — moderate inflation (1.5–3%) has several economic benefits. It gives central banks room to cut rates during recessions (can't go far below 0%). It incentivizes spending and investment over hoarding cash (since money loses value over time). It makes debts easier to repay over time (debt is fixed in nominal dollars while wages rise). Zero inflation or deflation can cause economic stagnation: when prices fall, consumers delay purchases expecting cheaper prices tomorrow, reducing demand and employment in a self-reinforcing cycle.
How does inflation affect home mortgage payments?
A fixed-rate mortgage is actually an inflation winner for borrowers. Your monthly payment stays the same in nominal dollars while inflation erodes its real value. A $2,000/month payment in 2024 dollars represents a smaller real burden in 2034 after 10 years of 3% inflation — effectively only $1,488 in today's purchasing power. Additionally, your home's nominal value typically rises with inflation while your fixed mortgage debt stays constant, building equity. This is why homeownership is often recommended as part of an inflation-protection strategy.
