U.S. inflation · 1940–1970
$100 in 1940 has the same buying power as
$277
in 1970
| Cumulative price change | 177.1% |
|---|---|
| Average inflation rate | 3.46% per year |
| Converted amount ($100 base) | $277 |
| Price difference ($100 base) | $177 |
| CPI in 1940 | 14 |
| CPI in 1970 | 38.8 |
| Inflation in 1940 | 0.72% |
| Inflation in 1970 | 5.72% |
| $100 in 1940 → 1970 | $277 |
| $100 in 1970 → 1940 | $36.08 |
Between 1940 and 1970, the Consumer Price Index went from 14 to 38.8. Cumulatively, prices increased 177.1%, which works out to an average of 3.46% per year. Put differently, a dollar in 1940 bought what $0.36 buys in 1970.
| Amount in 1940 | Value in 1970 |
|---|---|
| $1.00 | $2.77 |
| $5.00 | $13.86 |
| $10.00 | $27.71 |
| $20.00 | $55.43 |
| $50.00 | $139 |
| $100 | $277 |
| $500 | $1,386 |
| $1,000 | $2,771 |
| $5,000 | $13,857 |
| $10,000 | $27,714 |
| $100,000 | $277,143 |
| $1,000,000 | $2,771,429 |
The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1940 spending costs in 1970, by category:
| Category | Avg. yearly inflation | $100 in 1940 → |
|---|---|---|
| All items (CPI-U) | 3.46% | $277 |
| Medical care | 4.03% | $327 |
| Food | 4.02% | $327 |
| Apparel | 3.39% | $272 |
| Transportation | 3.29% | $264 |
Not shown because the BLS began these indexes after 1940: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), recreation (1993–), education & communication (1993–).
| Year | CPI | Inflation rate | $100 from 1940 |
|---|---|---|---|
| 1940 | 14 | 0.7% | $100 |
| 1941 | 14.7 | 5.0% | $105 |
| 1942 | 16.3 | 10.9% | $116 |
| 1943 | 17.3 | 6.1% | $124 |
| 1944 | 17.6 | 1.7% | $126 |
| 1945 | 18 | 2.3% | $129 |
| 1946 | 19.5 | 8.3% | $139 |
| 1947 | 22.3 | 14.4% | $159 |
| 1948 | 24.1 | 8.1% | $172 |
| 1949 | 23.8 | -1.2% | $170 |
| 1950 | 24.1 | 1.3% | $172 |
| 1951 | 26 | 7.9% | $186 |
| 1952 | 26.5 | 1.9% | $189 |
| 1953 | 26.7 | 0.8% | $191 |
| 1954 | 26.9 | 0.7% | $192 |
| 1955 | 26.8 | -0.4% | $191 |
| 1956 | 27.2 | 1.5% | $194 |
| 1957 | 28.1 | 3.3% | $201 |
| 1958 | 28.9 | 2.8% | $206 |
| 1959 | 29.1 | 0.7% | $208 |
| 1960 | 29.6 | 1.7% | $211 |
| 1961 | 29.9 | 1.0% | $214 |
| 1962 | 30.2 | 1.0% | $216 |
| 1963 | 30.6 | 1.3% | $219 |
| 1964 | 31 | 1.3% | $221 |
| 1965 | 31.5 | 1.6% | $225 |
| 1966 | 32.4 | 2.9% | $231 |
| 1967 | 33.4 | 3.1% | $239 |
| 1968 | 34.8 | 4.2% | $249 |
| 1969 | 36.7 | 5.5% | $262 |
| 1970 | 38.8 | 5.7% | $277 |
MLA: “Inflation from 1940 to 1970: $100 is worth $277 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1940-to-1970/
APA: InflationCalculator.com. Inflation from 1940 to 1970. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1940-to-1970/
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.