USD Inflation Calculator, 1913 to Latest Year
Find what a US dollar amount from any year is worth in another year using BLS CPI-U annual averages. See cumulative inflation, the average yearly rate and the CPI values used. Runs in your browser.
Enter an amount to see what it is worth in another year.
Source: US Bureau of Labor Statistics, CPI-U all items, series CUUR0000SA0, annual averages (1982-84=100). https://data.bls.gov/timeseries/CUUR0000SA0, retrieved 2026-10-31.
About the USD Inflation Calculator
The USD Inflation Calculator tells you what a US dollar amount from one year is worth in another year. Enter an amount, choose a From year and a To year, and the page shows the equivalent amount, the cumulative inflation between the two years, the average annual rate, and the same question asked backwards: what the amount in the later year was worth in the earlier one. The years run from 1913 to the latest complete year in the table.
The numbers come from the US Bureau of Labor Statistics (BLS) Consumer Price Index for All Urban Consumers, series CUUR0000SA0, using annual averages. Source: https://data.bls.gov/timeseries/CUUR0000SA0, retrieved 2026-10-31. Results are approximate, cover US dollars and urban consumers only, and are not financial advice.
How to use the calculator
Steps
- Type an Amount in dollars. Commas and decimals are fine, such as
1,250.50. - Pick the From year, the year the amount is priced in. It starts at 2000.
- Pick the To year, the year you want it converted to. It starts at the latest year in the table.
- Read the equivalent amount and the two rates. Open Calculation to see the two CPI values used and the formulas, so you can check them against the BLS table.
If the From year is later than the To year, the calculator works backwards in time. Prices were lower earlier, so the equivalent amount is smaller and the cumulative change is negative.
The formulas
The calculator compares the average price level in the two years using the CPI-U index.
Here years is the number of years between the two years. For the reverse question the ratio is flipped, so the amount is multiplied by the CPI of the From year and divided by the CPI of the To year. If both years are the same, the equivalent equals the amount and both percentages are zero.
Worked examples
Example 1: 1913 to 2025
The 1913 annual average is 9.9 and the 2025 annual average is 321.943. For 3,251.95. Cumulative inflation is 3,151.95%, and spread over 112 years that is an average of 3.16% a year. Backwards, 3.08 in 1913.
Example 2: 2000 to 2024
The 2000 annual average is 172.2 and the 2024 annual average is 313.689. For 182.17. Cumulative inflation is 82.17%, an average of 2.53% a year over 24 years. Backwards, 54.90 in 2000.
Example 3: 1980 to 2020
The index was 82.4 in 1980 and 258.811 in 2020. A salary of 3,140.91 in 2020 to buy the same things, which is 214.09% cumulative inflation or 2.90% a year.
What the results mean
The equivalent amount is the sum that would have the same average purchasing power in the other year. It does not say what any particular item cost. Housing, education and medical care have risen faster than the overall index, while electronics have mostly fallen, so a basket that differs from the average consumer's will see different inflation. Use the figure for rough comparisons such as salaries, prices in old documents, savings or historical budgets.
Accuracy and limits
Annual averages only
Each year is the average of the monthly index values for that year. The calculator does not compare months, so results for years that are close together can differ slightly from a month-to-month figure.
US urban consumers
CPI-U measures price changes for urban households in the United States. It does not cover rural areas, other countries or other currencies, and it is not a forecast.
Not financial advice
The page is an arithmetic aid. For investments, contracts or legal claims, rely on the official BLS figures and a qualified adviser.
Privacy
Nothing is uploaded; every calculation runs in your browser and never leaves your device. The CPI table is built into the page, so the calculator also works offline once loaded.
Related tools
To work out a percentage change between any two numbers, use the Percentage Calculator. To see how a borrowing cost adds up over time, try the Loan Calculator. For the rate itself, the CPI Inflation Calculator explains how the index is built.
Frequently asked questions
Where does the inflation data come from?
From the US Bureau of Labor Statistics Consumer Price Index for All Urban Consumers (CPI-U), all items, U.S. city average, series CUUR0000SA0. The page uses the annual average for each year from 1913 onward, retrieved on 2026-10-31 from https://data.bls.gov/timeseries/CUUR0000SA0.
How is the equivalent amount calculated?
The amount is multiplied by the CPI of the To year and divided by the CPI of the From year. For example, $100 in 2000 becomes 100 x 313.689 / 172.2 = $182.17 in 2024. Open the Calculation block under the result to see both index values.
What is the average annual rate?
It is the single yearly rate that would produce the same cumulative change over the span, found by taking the CPI ratio to the power of one over the number of years. From 2000 to 2024 the cumulative change is 82.17%, which is an average of 2.53% a year. Inflation varied from year to year, so the average hides some very different years.
Why can I not pick a month or a date?
The calculator uses annual averages, so every year is a single price level. That keeps the long history consistent, but it means results are approximate and a month-to-month figure from BLS can differ a little, especially over short spans.
What happens if the From year is later than the To year?
The calculator works backwards in time. Prices were lower earlier, so the equivalent amount is smaller and the cumulative change is negative. For example, $100 in 2025 had the same buying power as $3.08 in 1913.
Does this work for other currencies or countries?
No. CPI-U measures price changes for urban consumers in the United States and the results are in US dollars. Other countries publish their own indexes, and the calculator is not financial advice.
Is anything I enter uploaded or stored?
No. Nothing is uploaded; every calculation runs in your browser and never leaves your device. The CPI table is built into the page.