LemonTradesCPI inflation calculator
What a dollar amount from one month or year is worth in another, using the Bureau of Labor Statistics’ consumer price index, the standard US measure of inflation.
CPI-U, all items, not seasonally adjusted, from the BLS (series CUUR0000SA0). Prices in a month are compared using that month’s index; October 2025 has no reading, because it wasn’t collected during the government shutdown. This calculator is LemonTrades’, built on the BLS’s data.
- $100 in 1970 today
- $868
- $100 in 1980 today
- $409
- $100 in 1990 today
- $258
- $100 in 2000 today
- $196
- $100 in 2010 today
- $155
- $100 in 2020 today
- $130
Inflation by year
| Year | Average CPI | Inflation | $100 then is worth now |
|---|---|---|---|
| 2024 | 313.7 | +2.9% | $107 |
| 2023 | 304.7 | +4.1% | $111 |
| 2022 | 292.7 | +8.0% | $115 |
| 2021 | 271.0 | +4.7% | $124 |
| 2020 | 258.8 | +1.2% | $130 |
| 2019 | 255.7 | +1.8% | $132 |
| 2018 | 251.1 | +2.4% | $134 |
| 2017 | 245.1 | +2.1% | $137 |
| 2016 | 240.0 | +1.3% | $140 |
| 2015 | 237.0 | +0.1% | $142 |
| 2014 | 236.7 | +1.6% | $142 |
| 2013 | 233.0 | +1.5% | $145 |
Inflation here is the change in the yearly average index; the headline rate in the news is usually the change over the last 12 months.
How the calculator works
The consumer price index tracks what a basket of goods and services costs: housing, food, energy, cars, medical care and more. Divide the index in the later month by the index in the earlier one, multiply by your amount, and you have the same buying power in later dollars. For example, if the index doubled, $100 then buys what $200 buys now.
Why traders watch CPI
The monthly CPI report decides much of what the Fed does next, so it moves the dollar, Treasury yields, gold and stocks within seconds of 8:30 AM ET. See what is CPI in trading and did the Fed cut rates?
Questions
What is the inflation rate right now?
3.7% over the 12 months to September 2026, by the CPI-U.
Is this the official BLS calculator?
No. It’s LemonTrades’ calculator, using the same CPI-U data the BLS publishes; results match the BLS’s own calculator to rounding.
What was $1 worth in 1913?
About $34.38 in today’s money.
LemonTrades warns you 15 minutes before each CPI report and sends the result against the forecast a minute after, with what it means for gold, the dollar, yields and stocks. Try LemonTrades free for 3 days, no card needed.
Market news and analysis, not financial advice. AI can misread a headline, so check the source before acting on anything important. Prices and news may be delayed.