Inflation silently erodes the value of every dollar you hold. This calculator works in both directions — see what past dollars are worth today, or what today’s dollars will buy in the future. Switch between categories to see how housing, medical, and education costs inflate at very different rates.
Pro tip: Medical costs have averaged 5.5% annual inflation — nearly double the overall rate. A $500/month health insurance premium today could cost over $1,800 in 20 years at that pace.
See how the same amount inflates at wildly different rates across life categories.
How to Use the Inflation Calculator
Enter any dollar amount and choose a direction. Past → Present shows what money from a prior year would equal today — great for understanding how prices have changed over your lifetime. Present → Future projects what today’s dollars will be worth later, helping you plan for retirement or major purchases. Select a category to see sector-specific inflation rather than the general average.
What Is CPI and How Is Inflation Measured?
The Consumer Price Index (CPI) tracks the average change in prices paid by urban consumers for a basket of goods and services. Published monthly by the Bureau of Labor Statistics, it covers roughly 80,000 items across 200 categories. The “headline” CPI includes food and energy; the “core” CPI excludes them because they are volatile. This calculator uses headline CPI for the General category and sector-specific indexes for the specialized categories.
Why Official Inflation Doesn’t Match Your Experience
The general CPI averages across all categories, but no one is “average.” If you spend heavily on housing or healthcare, your personal inflation rate is likely higher than the published number. Medical costs have averaged 5.5% per year over the past 30 years, while food has tracked closer to 2.5%. Education has outpaced nearly everything at roughly 6% per year. Selecting a category in this tool reveals those sector-specific rates.
How Inflation Compounds Over Decades
Like compound interest in reverse, inflation compounds. At 3% annual inflation, prices double roughly every 24 years. A $50,000 salary in 2000 would need to be about $90,000 today just to maintain the same purchasing power. Over a 30-year career, even “mild” inflation can cut a fixed income’s real value in half. This is why cost-of-living adjustments (COLAs) and regular raises matter so much.
Strategies to Hedge Against Inflation
Keeping all your savings in a low-yield savings account guarantees purchasing power loss. Historically, equities (stocks) have returned 7–10% annually, well above inflation. Treasury Inflation-Protected Securities (TIPS) adjust their principal with CPI. Real estate tends to appreciate with inflation. I-Bonds offer inflation-indexed returns with no risk. The key insight: assets that grow faster than inflation protect your wealth; cash and fixed rates do not.
Real Returns vs. Nominal Returns
When you see an investment returning “8% per year,” that is the nominal return. The real return subtracts inflation: if inflation is 3%, your real return is about 5%. This distinction matters enormously when planning for the future. An investment that returns 4% with 3% inflation is barely growing your purchasing power at all. Always think in real terms when making long-term financial decisions.
Looking for related tools? Try our Compound Interest Calculator to see how your savings grow over time, or our Cost of Living Calculator to compare expenses between cities. Explore all Everyday Math tools.