See how inflation erodes the purchasing power of your money over time.
Inflation is the sustained increase in the general price level of goods and services in an economy over time. As prices rise, each unit of currency buys fewer items — this decline in purchasing power is often called the "silent tax" because it erodes your wealth without a visible deduction. The Consumer Price Index (CPI), published monthly by the Bureau of Labor Statistics, is the most widely used measure of inflation in the United States.
To calculate the future cost of goods: Future Price = Current Price × (1 + r)t, where r is the annual inflation rate and t is the number of years. Conversely, to find today's purchasing power: Real Value = Amount / (1 + r)t.
With $100,000 today and an average inflation rate of 3.5% over 20 years:
The U.S. average annual inflation rate has been about 3.3% since 1913. Recent years (2021–2023) saw rates above 6%, making inflation planning more critical than ever for retirement saversand long-term investors.
Inflation is the rate at which the general level of prices for goods and services rises over time, reducing the purchasing power of your money. It is measured by tracking the Consumer Price Index (CPI), which monitors the average price change of a basket of consumer goods and services.
Most central banks, including the Federal Reserve, target an annual inflation rate of about 2%. This level is considered healthy for economic growth — enough to encourage spending and investment without rapidly eroding purchasing power. Sustained rates above 4-5% are generally considered problematic.
If your savings earn less interest than the inflation rate, your money loses real purchasing power over time. For example, $100,000 in a 1% savings account loses about 2% of its buying power annually when inflation is 3%. This is why investing in assets that outpace inflation is essential for long-term wealth preservation.
Nominal return is the raw percentage gain on your investment. Real return adjusts for inflation: Real Return ≈ Nominal Return − Inflation Rate. A 10% nominal return with 3% inflation gives only about 6.8% real return. Always evaluate investments using real returns for accurate purchasing power comparisons.
Key strategies include: investing in stocks (historically 7-10% annual returns), real estate, Treasury Inflation-Protected Securities (TIPS), I Bonds, and commodities. Avoid holding too much cash or low-yield savings accounts. Diversification across inflation-resistant asset classes is the most effective protection.