Inflation Calculator

What Is Your Money Really Worth?

A dollar today doesn't buy what a dollar bought 10, 20, or 50 years ago — and a dollar 10 years from now will buy even less. Inflation silently erodes purchasing power, making everything from groceries to housing more expensive over time. Our calculator shows exactly how much prices have changed between any two years using official Consumer Price Index (CPI) data from the Bureau of Labor Statistics.

Enter a dollar amount, a starting year, and an ending year. The calculator shows the equivalent value adjusted for inflation, the cumulative inflation rate, and the average annual inflation rate over the period.

Quick examples: $100 in 2000 has the same purchasing power as approximately $184 in 2026 — prices nearly doubled in 26 years. $50,000 salary in 2015 would need to be approximately $67,000 in 2026 to maintain the same standard of living. The average annual US inflation rate since 1913 is approximately 3.2%.

How Inflation Is Measured

The Consumer Price Index (CPI) is the most widely used inflation measure in the United States. The Bureau of Labor Statistics calculates CPI monthly by tracking the prices of approximately 80,000 goods and services across 23,000 retail and service establishments. The "basket" includes food, housing, transportation, medical care, recreation, education, communication, and other categories.

CPI-U (Consumer Price Index for All Urban Consumers) covers approximately 93% of the US population and is the most commonly cited version. CPI-W (Wage Earners and Clerical Workers) covers a smaller subset and is used for Social Security cost-of-living adjustments. Core CPI excludes volatile food and energy prices to show underlying inflation trends — the Federal Reserve focuses heavily on this measure for monetary policy decisions.

How CPI becomes an inflation rate: Inflation is the percentage change in CPI between two periods. If CPI was 296.8 in January 2024 and 310.2 in January 2025, the year-over-year inflation rate was (310.2 - 296.8) / 296.8 x 100 = 4.5%.

Limitations of CPI: CPI measures average price changes across the entire consumer basket. Your personal inflation rate may differ significantly depending on your spending patterns. If you spend a larger-than-average share on housing or healthcare (both of which have outpaced overall CPI), your effective inflation is higher than the headline number. If you spend more on technology (which deflates rapidly), your effective inflation may be lower.

Historical Inflation Context

The long-term average: Since the CPI was established in 1913, average annual US inflation has been approximately 3.2%. This means prices roughly double every 22 years. However, inflation has been highly variable — from deflation during the Great Depression (-10% in 1932) to double-digit inflation in the late 1970s and early 1980s (13.5% in 1980).

Recent history: Inflation was remarkably stable from the mid-1990s through 2019, averaging approximately 2.0–2.5% annually — close to the Federal Reserve's 2% target. The COVID-19 pandemic disrupted this: supply chain breakdowns and massive fiscal stimulus drove inflation to 9.1% in June 2022 (the highest since 1981). Since then, the Fed's aggressive rate hiking cycle has brought inflation back toward the 2–3% range by 2025–2026.

Category differences: Not everything inflates at the same rate. Since 2000, college tuition has increased approximately 180%, healthcare costs approximately 130%, and housing approximately 120% — all far exceeding the overall CPI increase of approximately 84%. Meanwhile, electronics, clothing, and many consumer goods have actually decreased in real (inflation-adjusted) terms due to global manufacturing efficiencies.

How Inflation Affects Your Finances

Savings and cash lose purchasing power at the inflation rate. $10,000 in a checking account earning 0.01% loses approximately $300/year in real purchasing power at 3% inflation. Over 10 years, that $10,000 buys only what $7,400 bought originally — a 26% loss in real value without touching the money. This is why holding excess cash beyond an emergency fund is one of the most common and costly financial mistakes.

Fixed-income investments (bonds, CDs, annuities) face inflation risk because their payments are fixed in nominal terms. A bond paying 4% annually sounds positive, but at 3% inflation, the real return is only 1%. If inflation spikes to 5%, the real return becomes -1% — you're losing purchasing power despite "earning" interest.

Stocks have historically been the best long-term inflation hedge. The S&P 500 has returned approximately 10% annually (7% after inflation) over the past century. Companies can raise prices to offset their own cost increases, passing inflation through to consumers and preserving profit margins.

Real estate also hedges inflation because property values and rents tend to rise with the general price level. A fixed-rate mortgage is particularly inflation-friendly — your payment stays constant while your income (hopefully) rises with inflation, making the relative burden lighter over time.

Salary negotiations: If you receive a 3% annual raise and inflation is 3%, your real purchasing power hasn't changed — you've gotten a 0% real raise. To actually improve your standard of living, you need raises that exceed inflation. When negotiating, always frame requests in real (inflation-adjusted) terms: "My purchasing power has decreased by X% since my last adjustment."

Using the Calculator for Planning

Retirement planning: If you need $60,000/year in today's dollars during retirement starting in 20 years, you'll actually need approximately $108,000/year (at 3% average inflation) to buy the same goods and services. Our calculator helps you convert today's spending assumptions into future nominal values for realistic planning.

Contract and salary benchmarking: Compare historical compensation to current equivalents. A $45,000 salary in 2010 has the same purchasing power as approximately $63,000 in 2026. If someone's salary hasn't increased from $45,000 to at least $63,000 over that period, they've taken a real pay cut.

Historical cost comparison: What did a house cost in 1980? What was the average income in 1960? Inflation-adjusting historical figures makes them comparable to today's prices, providing meaningful context for economic discussions.

Investment target setting: If you want to maintain $1 million in today's purchasing power 30 years from now, you actually need approximately $2.43 million in nominal terms (at 3% inflation). Use the calculator to set nominal investment targets that account for inflation erosion.

Inflation vs. Deflation

Deflation (falling prices) sounds attractive but is economically dangerous. When consumers expect prices to fall, they delay purchases — why buy today if it's cheaper tomorrow? This reduced spending causes businesses to cut production, lay off workers, and reduce investment, which pushes prices down further in a self-reinforcing spiral. Japan experienced prolonged deflation from the 1990s through 2010s, contributing to decades of economic stagnation.

Moderate inflation (2–3%) is generally considered healthy. It encourages spending and investment (better to buy now than wait), allows wages to adjust more flexibly, and gives central banks room to lower real interest rates during recessions. The Federal Reserve targets 2% inflation as the "Goldilocks" rate.

Hyperinflation (50%+ per month) destroys economies. Venezuela, Zimbabwe, and Weimar Germany experienced periods where prices doubled every few days, rendering currency worthless. This typically results from governments printing money to cover unsustainable deficits.