U.S. inflation · 1920–2011
$100 in 1920 has the same buying power as
$1,125
in 2011
| Cumulative price change | 1024.7% |
|---|---|
| Average inflation rate | 2.70% per year |
| Converted amount ($100 base) | $1,125 |
| Price difference ($100 base) | $1,025 |
| CPI in 1920 | 20 |
| CPI in 2011 | 224.939 |
| Inflation in 1920 | 15.61% |
| Inflation in 2011 | 3.16% |
| $100 in 1920 → 2011 | $1,125 |
| $100 in 2011 → 1920 | $8.89 |
Between 1920 and 2011, the Consumer Price Index went from 20 to 224.939. Cumulatively, prices increased 1024.7%, which works out to an average of 2.70% per year. Put differently, a dollar in 1920 bought what $0.09 buys in 2011.
| Amount in 1920 | Value in 2011 |
|---|---|
| $1.00 | $11.25 |
| $5.00 | $56.23 |
| $10.00 | $112 |
| $20.00 | $225 |
| $50.00 | $562 |
| $100 | $1,125 |
| $500 | $5,623 |
| $1,000 | $11,247 |
| $5,000 | $56,235 |
| $10,000 | $112,470 |
| $100,000 | $1,124,695 |
| $1,000,000 | $11,246,950 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1920 spending costs in 2011, by category:
| Category | Avg. yearly inflation | $100 in 1920 → |
|---|---|---|
| All items (CPI-U) | 2.70% | $1,125 |
| Food | 2.65% | $1,085 |
| Apparel | 1.15% | $283 |
Not shown because the BLS began these indexes after 1920: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), medical care (1935–), transportation (1935–), recreation (1993–), education & communication (1993–).
| Year | CPI | Inflation rate | $100 from 1920 |
|---|---|---|---|
| 1920 | 20 | 15.6% | $100 |
| 1925 | 17.5 | 2.3% | $87.50 |
| 1930 | 16.7 | -2.3% | $83.50 |
| 1935 | 13.7 | 2.2% | $68.50 |
| 1940 | 14 | 0.7% | $70.00 |
| 1945 | 18 | 2.3% | $90.00 |
| 1950 | 24.1 | 1.3% | $121 |
| 1955 | 26.8 | -0.4% | $134 |
| 1960 | 29.6 | 1.7% | $148 |
| 1965 | 31.5 | 1.6% | $158 |
| 1970 | 38.8 | 5.7% | $194 |
| 1975 | 53.8 | 9.1% | $269 |
| 1980 | 82.4 | 13.5% | $412 |
| 1985 | 107.6 | 3.6% | $538 |
| 1990 | 130.7 | 5.4% | $653 |
| 1995 | 152.4 | 2.8% | $762 |
| 2000 | 172.2 | 3.4% | $861 |
| 2005 | 195.3 | 3.4% | $977 |
| 2010 | 218.056 | 1.6% | $1,090 |
| 2011 | 224.939 | 3.2% | $1,125 |
Long periods are sampled every 5 years; the calculator above covers any pair of years.
MLA: “Inflation from 1920 to 2011: $100 is worth $1,125 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1920-to-2011/
APA: InflationCalculator.com. Inflation from 1920 to 2011. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1920-to-2011/
Source: U.S. Bureau of Labor Statistics, CPI-U annual averages (series CUUR0000SA0; category indexes listed on the data sources page). See how these numbers are calculated.