When did prices double after 1986?
By July 2008, prices were twice their 1986 average (CPI-U 109.6 → 219.2), 22 years later. They had tripled by March 2026.
What $1 from 1986 is worth today
$1 in 1986 = $3.07 in September 2026
$1 from 1986$3.07in September 2026 dollars
Prices since 1986+207%CPI 109.6 → 336.9
Average a year2.83%compounded since 1986
Inflation in 19861.1%December to December
Worth in September 2026$307.40
Prices changed207.4%
Average a year2.83%
$100.00 in 1986 buys what $307.40 buys in September 2026.$100.00 × CPI 336.940 ÷ CPI 109.608 · 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
1986 dollars in September 2026 dollars
| In 1986 | In September 2026 |
|---|---|
| $1.00 | $3.07 |
| $5.00 | $15.37 |
| $10.00 | $30.74 |
| $20.00 | $61.48 |
| $50.00 | $153.70 |
| $100.00 | $307.40 |
| $500.00 | $1,537 |
| $1,000 | $3,074 |
| $10,000 | $30,740 |
| $50,000 | $153,702 |
| $100,000 | $307,404 |
$100 from 1986, decade by decade
1986 in the inflation record
- Prices rose 1.1% in 1986 (December to December), below the 3.3% average of every year since 1914: #87 of 112 from highest to lowest.
- The 1980s averaged 5.1% a year; the decade’s highest was 1980 at 12.5%.
- Prices first stood at twice their 1986 level in July 2008, and three times in March 2026.
- A dollar today buys what 32.5¢ bought in 1986.
CPI-U each month of 1986
| Month | CPI-U |
|---|---|
| January | 109.600 |
| February | 109.300 |
| March | 108.800 |
| April | 108.600 |
| May | 108.900 |
| June | 109.500 |
| July | 109.500 |
| August | 109.700 |
| September | 110.200 |
| October | 110.300 |
| November | 110.400 |
| December | 110.500 |
| Year average | 109.608 |
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 1986 worth today?
$3.07 in September 2026. Prices have risen 207.4% since 1986, using the 1986 average CPI-U of 109.608 and the September 2026 CPI-U of 336.940 from the U.S. Bureau of Labor Statistics.
What was the inflation rate in 1986?
Prices rose 1.1% from December 1985 to December 1986 (CPI-U, not seasonally adjusted).
What is the average inflation rate since 1986?
2.83% a year, compounded, from 1986 to September 2026. At that rate prices double about every 25 years.
How much is $100 from 1986 worth today?
$307.40. Multiply any 1986 amount by 3.074 to get today’s money.