When did prices double after 1997?
By May 2025, prices were twice their 1997 average (CPI-U 160.5 → 321.0), 28 years later.
What $1 from 1997 is worth today
$1 in 1997 = $2.10 in September 2026
$1 from 1997$2.10in September 2026 dollars
Prices since 1997+110%CPI 160.5 → 336.9
Average a year2.57%compounded since 1997
Inflation in 19971.7%December to December
Worth in September 2026$209.91
Prices changed109.9%
Average a year2.57%
$100.00 in 1997 buys what $209.91 buys in September 2026.$100.00 × CPI 336.940 ÷ CPI 160.517 · 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
1997 dollars in September 2026 dollars
| In 1997 | In September 2026 |
|---|---|
| $1.00 | $2.10 |
| $5.00 | $10.50 |
| $10.00 | $20.99 |
| $20.00 | $41.98 |
| $50.00 | $104.95 |
| $100.00 | $209.91 |
| $500.00 | $1,050 |
| $1,000 | $2,099 |
| $10,000 | $20,991 |
| $50,000 | $104,955 |
| $100,000 | $209,910 |
$100 from 1997, decade by decade
1997 in the inflation record
- Prices rose 1.7% in 1997 (December to December), below the 3.3% average of every year since 1914: #76 of 112 from highest to lowest.
- The 1990s averaged 2.9% a year; the decade’s highest was 1990 at 6.1%.
- Prices first stood at twice their 1997 level in May 2025.
- A dollar today buys what 47.6¢ bought in 1997.
CPI-U each month of 1997
| Month | CPI-U |
|---|---|
| January | 159.100 |
| February | 159.600 |
| March | 160.000 |
| April | 160.200 |
| May | 160.100 |
| June | 160.300 |
| July | 160.500 |
| August | 160.800 |
| September | 161.200 |
| October | 161.600 |
| November | 161.500 |
| December | 161.300 |
| Year average | 160.517 |
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 1997 worth today?
$2.10 in September 2026. Prices have risen 109.9% since 1997, using the 1997 average CPI-U of 160.517 and the September 2026 CPI-U of 336.940 from the U.S. Bureau of Labor Statistics.
What was the inflation rate in 1997?
Prices rose 1.7% from December 1996 to December 1997 (CPI-U, not seasonally adjusted).
What is the average inflation rate since 1997?
2.57% a year, compounded, from 1997 to September 2026. At that rate prices double about every 27 years.
How much is $100 from 1997 worth today?
$209.91. Multiply any 1997 amount by 2.099 to get today’s money.