U.S. inflation · 1918–1928
$100 in 1918 has the same buying power as
$113
in 1928
| Cumulative price change | 13.2% |
|---|---|
| Average inflation rate | 1.25% per year |
| Converted amount ($100 base) | $113 |
| Price difference ($100 base) | $13.25 |
| CPI in 1918 | 15.1 |
| CPI in 1928 | 17.1 |
| Inflation in 1918 | 17.97% |
| Inflation in 1928 | -1.72% |
| $100 in 1918 → 1928 | $113 |
| $100 in 1928 → 1918 | $88.30 |
Between 1918 and 1928, the Consumer Price Index went from 15.1 to 17.1. Cumulatively, prices increased 13.2%, which works out to an average of 1.25% per year. Put differently, a dollar in 1918 bought what $0.88 buys in 1928.
| Amount in 1918 | Value in 1928 |
|---|---|
| $1.00 | $1.13 |
| $5.00 | $5.66 |
| $10.00 | $11.32 |
| $20.00 | $22.65 |
| $50.00 | $56.62 |
| $100 | $113 |
| $500 | $566 |
| $1,000 | $1,132 |
| $5,000 | $5,662 |
| $10,000 | $11,325 |
| $100,000 | $113,245 |
| $1,000,000 | $1,132,450 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1918 spending costs in 1928, by category:
| Category | Avg. yearly inflation | $100 in 1918 → |
|---|---|---|
| All items (CPI-U) | 1.25% | $113 |
| Food | -0.24% | $97.60 |
| Apparel | -0.88% | $91.58 |
Not shown because the BLS began these indexes after 1918: 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 1918 |
|---|---|---|---|
| 1918 | 15.1 | 18.0% | $100 |
| 1919 | 17.3 | 14.6% | $115 |
| 1920 | 20 | 15.6% | $132 |
| 1921 | 17.9 | -10.5% | $119 |
| 1922 | 16.8 | -6.1% | $111 |
| 1923 | 17.1 | 1.8% | $113 |
| 1924 | 17.1 | 0.0% | $113 |
| 1925 | 17.5 | 2.3% | $116 |
| 1926 | 17.7 | 1.1% | $117 |
| 1927 | 17.4 | -1.7% | $115 |
| 1928 | 17.1 | -1.7% | $113 |
MLA: “Inflation from 1918 to 1928: $100 is worth $113 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1918-to-1928/
APA: InflationCalculator.com. Inflation from 1918 to 1928. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1918-to-1928/
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.