U.S. inflation · 1918–1946
$100 in 1918 has the same buying power as
$129
in 1946
| Cumulative price change | 29.1% |
|---|---|
| Average inflation rate | 0.92% per year |
| Converted amount ($100 base) | $129 |
| Price difference ($100 base) | $29.14 |
| CPI in 1918 | 15.1 |
| CPI in 1946 | 19.5 |
| Inflation in 1918 | 17.97% |
| Inflation in 1946 | 8.33% |
| $100 in 1918 → 1946 | $129 |
| $100 in 1946 → 1918 | $77.44 |
Between 1918 and 1946, the Consumer Price Index went from 15.1 to 19.5. Cumulatively, prices increased 29.1%, which works out to an average of 0.92% per year. Put differently, a dollar in 1918 bought what $0.77 buys in 1946.
| Amount in 1918 | Value in 1946 |
|---|---|
| $1.00 | $1.29 |
| $5.00 | $6.46 |
| $10.00 | $12.91 |
| $20.00 | $25.83 |
| $50.00 | $64.57 |
| $100 | $129 |
| $500 | $646 |
| $1,000 | $1,291 |
| $5,000 | $6,457 |
| $10,000 | $12,914 |
| $100,000 | $129,139 |
| $1,000,000 | $1,291,391 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1918 spending costs in 1946, by category:
| Category | Avg. yearly inflation | $100 in 1918 → |
|---|---|---|
| All items (CPI-U) | 0.92% | $129 |
| Apparel | 0.83% | $126 |
| Food | 0.61% | $119 |
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 |
| 1929 | 17.1 | 0.0% | $113 |
| 1930 | 16.7 | -2.3% | $111 |
| 1931 | 15.2 | -9.0% | $101 |
| 1932 | 13.7 | -9.9% | $90.73 |
| 1933 | 13 | -5.1% | $86.09 |
| 1934 | 13.4 | 3.1% | $88.74 |
| 1935 | 13.7 | 2.2% | $90.73 |
| 1936 | 13.9 | 1.5% | $92.05 |
| 1937 | 14.4 | 3.6% | $95.36 |
| 1938 | 14.1 | -2.1% | $93.38 |
| 1939 | 13.9 | -1.4% | $92.05 |
| 1940 | 14 | 0.7% | $92.72 |
| 1941 | 14.7 | 5.0% | $97.35 |
| 1942 | 16.3 | 10.9% | $108 |
| 1943 | 17.3 | 6.1% | $115 |
| 1944 | 17.6 | 1.7% | $117 |
| 1945 | 18 | 2.3% | $119 |
| 1946 | 19.5 | 8.3% | $129 |
MLA: “Inflation from 1918 to 1946: $100 is worth $129 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1918-to-1946/
APA: InflationCalculator.com. Inflation from 1918 to 1946. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1918-to-1946/
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.