Inflation Calculator

Your grandfather mentions he bought his first car for $2,800 in 1968, and you want to know what that looks like in present-day dollars before you scoff at it as cheap. Inflation compounds, and 50+ years of compounding turns numbers in ways that aren't intuitive — that $2,800 is closer to $25,000 in present-day money, which sounds about right for a basic new car now.

The calculation uses CPI (Consumer Price Index), the U.S. government's official measure of price changes for a basket of consumer goods. Pick a starting year, an ending year, and a dollar amount. The output applies the cumulative inflation rate between those two points. CPI has its critics — it doesn't perfectly track everyone's actual cost of living — but it's the standard reference for this comparison.

The formula: adjusted amount = original × (target year CPI / source year CPI). The Bureau of Labor Statistics publishes monthly CPI-U values back to 1913. Pick any two years and the ratio gives you the inflation factor. So $1 in 1913 has the same buying power as roughly $30 today — about 1,500% cumulative inflation across 110 years, which works out to a long-run average of about 3% per year. The actual rate varies wildly: deflation in the early 1930s, double-digit inflation in the late 1970s, near-zero in the 2010s, and a 2021-2023 spike that pushed many households' real wages down for the first time in a decade.

A worked example: $50,000 salary in 1995 expressed in 2024 dollars. CPI in 1995 averaged 152.4. CPI in 2024 averaged 314.4. Ratio: 314.4 / 152.4 = 2.063. Adjusted: $50,000 × 2.063 = $103,150. So a $50K salary in 1995 had the buying power of just over $103K today. That's why your parents' "good income" stories from decades ago don't translate to current numbers without adjustment — the dollar number alone is misleading without a CPI conversion.

Where CPI as a metric is imperfect: it tracks an average urban household's basket of goods, which doesn't match yours. If you spend more than average on healthcare, college tuition, or housing in coastal cities — all of which inflated faster than CPI — your personal inflation is higher than the headline number. If you under-index on those (rural, healthy, no kids in college), your personal inflation is lower. CPI also has methodology shifts over time (chained vs unchained, hedonic adjustments, owner's equivalent rent for housing) that make very long historical comparisons fuzzier than the math suggests. For comparing decades-old amounts to today, the calculator gives a defensible single number; for personal financial planning, run your own basket against your own spending categories.