When did prices double after 1975?
By July 1985, prices were twice their 1975 average (CPI-U 53.8 → 107.6), 10 years later. They had tripled by October 1997.
What $1 from 1975 is worth today
$1 in 1975 = $6.26 in September 2026
$1 from 1975$6.26in September 2026 dollars
Prices since 1975+526%CPI 53.8 → 336.9
Average a year3.64%compounded since 1975
Inflation in 19756.9%December to December
Worth in September 2026$626.09
Prices changed526.1%
Average a year3.64%
$100.00 in 1975 buys what $626.09 buys in September 2026.$100.00 × CPI 336.940 ÷ CPI 53.817 · 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
1975 dollars in September 2026 dollars
| In 1975 | In September 2026 |
|---|---|
| $1.00 | $6.26 |
| $5.00 | $31.30 |
| $10.00 | $62.61 |
| $20.00 | $125.22 |
| $50.00 | $313.04 |
| $100.00 | $626.09 |
| $500.00 | $3,130 |
| $1,000 | $6,261 |
| $10,000 | $62,609 |
| $50,000 | $313,044 |
| $100,000 | $626,089 |
$100 from 1975, decade by decade
| Year | Worth | Average CPI |
|---|---|---|
| 1985 | $199.88 | 107.6 |
| 1995 | $283.15 | 152.4 |
| 2005 | $362.88 | 195.3 |
| 2015 | $440.42 | 237.0 |
| 2025 | $598.22 | 321.9 |
| September 2026 | $626.09 | 336.9 |
1975 in the inflation record
- Prices rose 6.9% in 1975 (December to December), above the 3.3% average of every year since 1914: #16 of 112 from highest to lowest.
- The 1970s averaged 7.4% a year; the decade’s highest was 1979 at 13.3%.
- Prices first stood at twice their 1975 level in July 1985, and three times in October 1997.
- A dollar today buys what 16.0¢ bought in 1975.
CPI-U each month of 1975
| Month | CPI-U |
|---|---|
| January | 52.100 |
| February | 52.500 |
| March | 52.700 |
| April | 52.900 |
| May | 53.200 |
| June | 53.600 |
| July | 54.200 |
| August | 54.300 |
| September | 54.600 |
| October | 54.900 |
| November | 55.300 |
| December | 55.500 |
| Year average | 53.817 |
U.S. Bureau of Labor Statistics, CPI-U, U.S. city average, all items, not seasonally adjusted (1982-84 = 100). Source
Frequently asked questions
How much is $1 from 1975 worth today?
$6.26 in September 2026. Prices have risen 526.1% since 1975, using the 1975 average CPI-U of 53.817 and the September 2026 CPI-U of 336.940 from the U.S. Bureau of Labor Statistics.
What was the inflation rate in 1975?
Prices rose 6.9% from December 1974 to December 1975 (CPI-U, not seasonally adjusted).
What is the average inflation rate since 1975?
3.64% a year, compounded, from 1975 to September 2026. At that rate prices double about every 19 years.
How much is $100 from 1975 worth today?
$626.09. Multiply any 1975 amount by 6.261 to get today’s money.