US Inflation · 1980 → 2005
$1 in 1980 = $2.37 in 2005
Total inflation
137.0%
over 25 years
Annual average
3.51%
compounded
Common amounts adjusted
| $Amount in 1980 | Equivalent in 2005 |
|---|---|
| $100 | $237.01 |
| $1,000 | $2,370.15 |
| $10,000 | $23,701.46 |
| $100,000 | $237,014.56 |
How this was calculated
Based on the US Bureau of Labor Statistics Consumer Price Index (CPI). The cumulative inflation factor is the ratio of the 2005 CPI to the 1980 CPI.
factor = CPI(2005) / CPI(1980) = 2.3701
annual = factor^(1/25) − 1 = 0.0351 (3.51%)
annual = factor^(1/25) − 1 = 0.0351 (3.51%)