When did prices double after 1974?
By May 1983, prices were twice their 1974 average (CPI-U 49.3 → 98.6), 9 years later. They had tripled by June 1994.
$1 in 1974 = $6.83 in September 2026
$100.00 in 1974 buys what $683.33 buys in September 2026.$100.00 × CPI 336.940 ÷ CPI 49.308 · a whole year uses its average CPI
BLS CPI-U, U.S. city average, not seasonally adjusted, through September 2026 (3.7% over 12 months). Source
| In 1974 | In September 2026 |
|---|---|
| $1.00 | $6.83 |
| $5.00 | $34.17 |
| $10.00 | $68.33 |
| $20.00 | $136.67 |
| $50.00 | $341.67 |
| $100.00 | $683.33 |
| $500.00 | $3,417 |
| $1,000 | $6,833 |
| $10,000 | $68,333 |
| $50,000 | $341,666 |
| $100,000 | $683,333 |
| Year | Worth | Average CPI |
|---|---|---|
| 1984 | $210.68 | 103.9 |
| 1994 | $300.61 | 148.2 |
| 2004 | $383.07 | 188.9 |
| 2014 | $480.11 | 236.7 |
| 2024 | $636.18 | 313.7 |
| September 2026 | $683.33 | 336.9 |
| Month | CPI-U |
|---|---|
| January | 46.600 |
| February | 47.200 |
| March | 47.800 |
| April | 48.000 |
| May | 48.600 |
| June | 49.000 |
| July | 49.400 |
| August | 50.000 |
| September | 50.600 |
| October | 51.100 |
| November | 51.500 |
| December | 51.900 |
| Year average | 49.308 |
U.S. Bureau of Labor Statistics, CPI-U, U.S. city average, all items, not seasonally adjusted (1982-84 = 100). Source
By May 1983, prices were twice their 1974 average (CPI-U 49.3 → 98.6), 9 years later. They had tripled by June 1994.
$6.83 in September 2026. Prices have risen 583.3% since 1974, using the 1974 average CPI-U of 49.308 and the September 2026 CPI-U of 336.940 from the U.S. Bureau of Labor Statistics.
Prices rose 12.3% from December 1973 to December 1974 (CPI-U, not seasonally adjusted).
3.75% a year, compounded, from 1974 to September 2026. At that rate prices double about every 19 years.
$683.33. Multiply any 1974 amount by 6.833 to get today’s money.