U.S. inflation · 1921–2018
$100 in 1921 has the same buying power as
$1,403
in 2018
| Cumulative price change | 1302.8% |
|---|---|
| Average inflation rate | 2.76% per year |
| Converted amount ($100 base) | $1,403 |
| Price difference ($100 base) | $1,303 |
| CPI in 1921 | 17.9 |
| CPI in 2018 | 251.107 |
| Inflation in 1921 | -10.50% |
| Inflation in 2018 | 2.44% |
| $100 in 1921 → 2018 | $1,403 |
| $100 in 2018 → 1921 | $7.13 |
Between 1921 and 2018, the Consumer Price Index went from 17.9 to 251.107. Cumulatively, prices increased 1302.8%, which works out to an average of 2.76% per year. Put differently, a dollar in 1921 bought what $0.07 buys in 2018.
| Amount in 1921 | Value in 2018 |
|---|---|
| $1.00 | $14.03 |
| $5.00 | $70.14 |
| $10.00 | $140 |
| $20.00 | $281 |
| $50.00 | $701 |
| $100 | $1,403 |
| $500 | $7,014 |
| $1,000 | $14,028 |
| $5,000 | $70,142 |
| $10,000 | $140,283 |
| $100,000 | $1,402,832 |
| $1,000,000 | $14,028,324 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1921 spending costs in 2018, by category:
| Category | Avg. yearly inflation | $100 in 1921 → |
|---|---|---|
| All items (CPI-U) | 2.76% | $1,403 |
| Food | 2.90% | $1,595 |
| Apparel | 1.38% | $378 |
Not shown because the BLS began these indexes after 1921: 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 1921 |
|---|---|---|---|
| 1921 | 17.9 | -10.5% | $100 |
| 1926 | 17.7 | 1.1% | $98.88 |
| 1931 | 15.2 | -9.0% | $84.92 |
| 1936 | 13.9 | 1.5% | $77.65 |
| 1941 | 14.7 | 5.0% | $82.12 |
| 1946 | 19.5 | 8.3% | $109 |
| 1951 | 26 | 7.9% | $145 |
| 1956 | 27.2 | 1.5% | $152 |
| 1961 | 29.9 | 1.0% | $167 |
| 1966 | 32.4 | 2.9% | $181 |
| 1971 | 40.5 | 4.4% | $226 |
| 1976 | 56.9 | 5.8% | $318 |
| 1981 | 90.9 | 10.3% | $508 |
| 1986 | 109.6 | 1.9% | $612 |
| 1991 | 136.2 | 4.2% | $761 |
| 1996 | 156.9 | 3.0% | $877 |
| 2001 | 177.1 | 2.8% | $989 |
| 2006 | 201.6 | 3.2% | $1,126 |
| 2011 | 224.939 | 3.2% | $1,257 |
| 2016 | 240.007 | 1.3% | $1,341 |
| 2018 | 251.107 | 2.4% | $1,403 |
Long periods are sampled every 5 years; the calculator above covers any pair of years.
MLA: “Inflation from 1921 to 2018: $100 is worth $1,403 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1921-to-2018/
APA: InflationCalculator.com. Inflation from 1921 to 2018. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1921-to-2018/
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.