Inflation Calculator
What an amount from any year since 1913 is worth today, from the official US Consumer Price Index. See how much prices rose in between and how the buying power of a dollar changed.
Key facts
- $100 in 2000 buys what $194.53 buys in August 2026: prices rose 94.5%, or 2.6% a year.
More optionsYear average → today (August 2026)
A month compares month to month, as BLS’s own calculator does.
Worth in
$100 in 2000 is worth
$194.53in August 2026
Prices rose 94.5% in between, so $100 of 2000 goods costs $194.53 in August 2026.
The price of $100 of 2000 goods, year by year
- Total inflation
- +94.5%
- Average a year
- 2.58%
- $100 of cash now buys
- $51.41 of 2000 goods
Official CPI-U data from the U.S. Bureau of Labor Statistics, through August 2026. These are averages for urban consumers, not advice. Terms
How this works: Method, 5 sources, Checked against 20 worked examples,
How this works
Method
An amount from one date is worth amount × CPI(later) ÷ CPI(earlier), using the BLS Consumer Price Index for All Urban Consumers (CPI-U, all items, not seasonally adjusted) from 1913: a year’s annual average or a single month. “My inflation rate” prices your monthly spending, line by line, with the BLS index for each category and compares what that basket cost a year earlier; the official basket is BLS’s December 2025 relative-importance table. BLS published no October 2025 index, so a calculation that needs that month uses the geometric mean of September and November 2025 and says so.
Sources
How it’s tested
20 worked examples for this page are checked by automated tests before every release: given the inputs, the tool must show the expected answer.
Limits
Official CPI-U data from the U.S. Bureau of Labor Statistics, through August 2026. These are averages for urban consumers, not advice.
Changes
- First version: what a dollar is worth from 1913 to August 2026, your own inflation rate, whether a raise beat inflation, the current rate, the rate by year and 12 year pages.
All 16 pages
Your own numbers · Inflation rates · Value of a dollar
Your own numbers
Inflation rates
Value of a dollar
- Value of a Dollar in 1913
- Value of a Dollar in 1920
- Value of a Dollar in 1930
- Value of a Dollar in 1940
- Value of a Dollar in 1950
- Value of a Dollar in 1960
- Value of a Dollar in 1970
- Value of a Dollar in 1980
- Value of a Dollar in 1990
- Value of a Dollar in 2000
- Value of a Dollar in 2010
- Value of a Dollar in 2020
How it works
Prices are measured by the Consumer Price Index for All Urban Consumers (CPI-U), all items, U.S. city average, from the Bureau of Labor Statistics. An amount from one date is worth amount × CPI(later) ÷ CPI(earlier) at another. A year uses its annual average; a month uses that month. It is the series BLS publishes back to 1913, not seasonally adjusted, and runs here from January 1913 to August 2026.
BLS has no CPI for October 2025 (its footnote: data unavailable because of the 2025 lapse in appropriations). Where a calculation needs that month, it uses the geometric mean of September and November 2025 and says so.
“Today” is the latest month BLS has published. The page is refreshed after each monthly release; the date under the answer says which month it uses.
Sources
- BLS, CPI-U all items (CUUR0000SA0)
- BLS, CPI-U all items, seasonally adjusted (CUSR0000SA0)
- BLS, Consumer Price Index data
- BLS, Relative importance of CPI components, December 2025
- BLS, Average hourly earnings, total private (CES0500000003)
The category weights are BLS’s relative importance table for December 2025 (2024 expenditure weights).
Frequently Asked Questions
How does the inflation calculator work?
It multiplies your amount by the CPI-U in the later period and divides by the CPI-U in the earlier one. For a year it uses BLS’s annual average; for a month, that month’s index. $100 in 2000 × 334.980 ÷ 172.2 = $194.53.
Why does my answer differ slightly from other inflation calculators?
Most differences come from the dates compared. BLS’s own calculator compares one month with another; many sites use annual averages, and some estimate the current year. Here a year means its annual average and “today” means the latest month BLS has published, unless you pick months.
How far back does it go?
To 1913, the first year of the Consumer Price Index. Figures for earlier years are historians’ estimates, not official BLS data, so they are not used.
Is the CPI the right measure for my own costs?
It measures the average price change for urban consumers. Your own costs depend on what you buy: someone who drives a lot or rents in a fast-rising market can face higher inflation. The “my inflation rate” page prices your own spending mix.
How often is the data updated?
BLS publishes the CPI once a month. This calculator runs to August 2026, and is refreshed after each release.