Inflation Calculator
Find what an amount from one year is worth in another, using official US CPI data back to 1913 or your own inflation rate.
About the Inflation Calculator
Inflation is the general rise in prices. The US Consumer Price Index for All Urban Consumers (CPI-U), published by the Bureau of Labor Statistics, tracks the price of a typical basket of goods and services. Adjusting by the ratio of two years' CPI shows equivalent purchasing power.
For other countries, or future projections, choose “My own rate” and enter an expected inflation rate.
The formula
Value in year B = amount × CPI(B) ÷ CPI(A)
- Own rate
- amount × (1 + rate)^years
What $100 in a past year buys in 2025
| Year | Equivalent in 2025 |
|---|---|
| 1950 | $1,336 |
| 1970 | $830 |
| 1980 | $391 |
| 1990 | $246 |
| 2000 | $187 |
| 2010 | $148 |
| 2020 | $124 |
Worked example
Example: $110.00 in 2000 is worth = $205.63 in 2025
- Inputs: Use: US history (CPI); Amount: $110; From year: 2,000; To year: 2,025.
- Formula: Value in year B = amount × CPI(B) ÷ CPI(A)
- Result: $110.00 in 2000 is worth = $205.63 in 2025
- CPI 2000: 172.2
- CPI 2025: 321.9
- Average yearly inflation: 2.53%
Things to keep in mind
- Annual averages: monthly figures can differ.
- 2026 is an estimate from partial-year data.
Questions people ask
What's the Fed's inflation target?
2% a year, measured by the PCE price index.
Why do my costs rise faster than CPI?
CPI is an average basket; housing, health care or education may rise faster for you.