U.S. inflation · 1915–1971
$100 in 1915 has the same buying power as
$401
in 1971
| Cumulative price change | 301.0% |
|---|---|
| Average inflation rate | 2.51% per year |
| Converted amount ($100 base) | $401 |
| Price difference ($100 base) | $301 |
| CPI in 1915 | 10.1 |
| CPI in 1971 | 40.5 |
| Inflation in 1915 | 1.00% |
| Inflation in 1971 | 4.38% |
| $100 in 1915 → 1971 | $401 |
| $100 in 1971 → 1915 | $24.94 |
Between 1915 and 1971, the Consumer Price Index went from 10.1 to 40.5. Cumulatively, prices increased 301.0%, which works out to an average of 2.51% per year. Put differently, a dollar in 1915 bought what $0.25 buys in 1971.
| Amount in 1915 | Value in 1971 |
|---|---|
| $1.00 | $4.01 |
| $5.00 | $20.05 |
| $10.00 | $40.10 |
| $20.00 | $80.20 |
| $50.00 | $200 |
| $100 | $401 |
| $500 | $2,005 |
| $1,000 | $4,010 |
| $5,000 | $20,050 |
| $10,000 | $40,099 |
| $100,000 | $400,990 |
| $1,000,000 | $4,009,901 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1915 spending costs in 1971, by category:
| Category | Avg. yearly inflation | $100 in 1915 → |
|---|---|---|
| All items (CPI-U) | 2.51% | $401 |
| Food | 2.52% | $404 |
| Apparel | 2.50% | $399 |
Not shown because the BLS began these indexes after 1915: 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 1915 |
|---|---|---|---|
| 1915 | 10.1 | 1.0% | $100 |
| 1917 | 12.8 | 17.4% | $127 |
| 1919 | 17.3 | 14.6% | $171 |
| 1921 | 17.9 | -10.5% | $177 |
| 1923 | 17.1 | 1.8% | $169 |
| 1925 | 17.5 | 2.3% | $173 |
| 1927 | 17.4 | -1.7% | $172 |
| 1929 | 17.1 | 0.0% | $169 |
| 1931 | 15.2 | -9.0% | $150 |
| 1933 | 13 | -5.1% | $129 |
| 1935 | 13.7 | 2.2% | $136 |
| 1937 | 14.4 | 3.6% | $143 |
| 1939 | 13.9 | -1.4% | $138 |
| 1941 | 14.7 | 5.0% | $146 |
| 1943 | 17.3 | 6.1% | $171 |
| 1945 | 18 | 2.3% | $178 |
| 1947 | 22.3 | 14.4% | $221 |
| 1949 | 23.8 | -1.2% | $236 |
| 1951 | 26 | 7.9% | $257 |
| 1953 | 26.7 | 0.8% | $264 |
| 1955 | 26.8 | -0.4% | $265 |
| 1957 | 28.1 | 3.3% | $278 |
| 1959 | 29.1 | 0.7% | $288 |
| 1961 | 29.9 | 1.0% | $296 |
| 1963 | 30.6 | 1.3% | $303 |
| 1965 | 31.5 | 1.6% | $312 |
| 1967 | 33.4 | 3.1% | $331 |
| 1969 | 36.7 | 5.5% | $363 |
| 1971 | 40.5 | 4.4% | $401 |
Long periods are sampled every 2 years; the calculator above covers any pair of years.
MLA: “Inflation from 1915 to 1971: $100 is worth $401 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1915-to-1971/
APA: InflationCalculator.com. Inflation from 1915 to 1971. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1915-to-1971/
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.