Inflation Calculator

See what an amount of money from one year is worth in another year, adjusted with the official US Consumer Price Index (CPI-U) annual averages from the Bureau of Labor Statistics, 1913 to 2025.

$100.00 in 2000 is worth, in 2025
$186.96
Cumulative price change, 2000 to 2025
86.96%
Average yearly inflation, 2000–2025
2.53%
CPI-U, 2000 → 2025
172.2 → 321.943
  • Uses CPI-U (all urban consumers, U.S. city average, all items) annual averages, not seasonally adjusted, 1982–84 = 100. Results show the change in average consumer prices; any one item, such as housing, tuition or a particular city's prices, may have changed by more or less.

Year by year: what $100.00 in 2000 equals

YearCPI-UInflationEquivalent amount
2,000172.23.4%$100.00
2,001177.12.8%$102.85
2,002179.91.6%$104.47
2,0031842.3%$106.85
2,004188.92.7%$109.70
2,005195.33.4%$113.41
2,006201.63.2%$117.07
2,007207.342.8%$120.41
2,008215.33.8%$125.03
2,009214.54-0.4%$124.59

How the inflation calculator works

The Consumer Price Index measures the average change over time in the prices urban consumers pay for a basket of goods and services. To move an amount between years, multiply it by the ratio of the two years' index values. If the index is twice as high in the later year, you need twice as many dollars to buy the same things.

This calculator uses CPI-U, the index for all urban consumers, which covers over 90 percent of the US population. It uses each year's annual average, which smooths out month-to-month swings, from 1913, the first year of the series, to 2025, the latest full year.

Reading the result

The headline figure answers "how many dollars in the second year buy what this amount bought in the first year?" It works in both directions: put the later year first to see what a recent amount would have been worth in an earlier year.

The average yearly inflation rate is the steady annual rate that would produce the same total change. Actual inflation varies a lot from year to year. Annual average prices fell during parts of the early 1920s and early 1930s, while 1980 averaged 13.5% above 1979 and 2022 averaged 8.0% above 2021.

Limits of a price index

The CPI tracks a changing basket of goods and services, and products change over time: a 1950 car or television is not the same product as one bought today. So the comparison is about purchasing power in general rather than the price of a specific thing.

For questions about wages, compare the result with wage growth over the same period. For pay adjustments or contracts that cite a specific index, check which one they use: some use CPI-W, a regional index or a particular month instead of the annual average.

The formula

Value in year B = Amount in year A × (CPI in year B ÷ CPI in year A)Cumulative inflation = (CPI B ÷ CPI A − 1) × 100Average yearly inflation = (CPI B ÷ CPI A)^(1 ÷ years) − 1
  • CPI = CPI-U annual average index (1982–84 = 100) from the Bureau of Labor Statistics

Example

  1. What is $100 from 2000 worth in 2025?
  2. CPI-U annual averages: 172.2 in 2000 and 321.943 in 2025.
  3. Value = 100 × 321.943 ÷ 172.2 = $186.96.
  4. Prices rose 86.96% over 25 years, an average of 2.53% a year: (321.943 ÷ 172.2)^(1/25) − 1.
  5. Put the other way, $100 in 2025 bought what $53.49 bought in 2000.

Frequently asked questions

How much is $100 from 1913 worth today?

Using the 2025 annual average, $100 in 1913 is worth $3,251.95. The CPI-U was 9.9 in 1913 and 321.943 in 2025.

What was the inflation rate in 2025?

Based on annual averages, consumer prices in 2025 were 2.63% higher than in 2024 (CPI-U of 321.943 versus 313.689). The 2024 figure was 2.95% over 2023.

Why can't I choose 2026?

The calculator uses full-year averages, and 2026 isn't complete yet. The Bureau of Labor Statistics publishes the 2026 annual average in early 2027.

What does "1982–84 = 100" mean?

It is the index's reference base: the average price level over 1982, 1983 and 1984 is set to 100. A CPI of 321.943 means prices were about 3.2 times that level. Only the ratio between two years matters for this calculator.

What is the difference between CPI-U and CPI-W?

CPI-U covers all urban consumers, over 90 percent of the population. CPI-W covers urban wage earners and clerical workers, about 30 percent of the population, and is the index used for Social Security cost-of-living adjustments.

Sources

Last reviewed for 2026. How we calculate.