When did prices double after 1915?
By April 1920, prices were twice their 1915 average (CPI-U 10.1 → 20.2), 5 years later. They had tripled by September 1962.
What $1 from 1915 is worth today
$1 in 1915 = $33.33 in September 2026
$1 from 1915$33.33in September 2026 dollars
Prices since 1915+3233%CPI 10.1 → 336.9
Average a year3.20%compounded since 1915
Inflation in 19152.0%December to December
Worth in September 2026$3,333.29
Prices changed3233.3%
Average a year3.20%
$100.00 in 1915 buys what $3,333.29 buys in September 2026.$100.00 × CPI 336.940 ÷ CPI 10.108 · 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
1915 dollars in September 2026 dollars
| In 1915 | In September 2026 |
|---|---|
| $1.00 | $33.33 |
| $5.00 | $166.66 |
| $10.00 | $333.33 |
| $20.00 | $666.66 |
| $50.00 | $1,667 |
| $100.00 | $3,333 |
| $500.00 | $16,666 |
| $1,000 | $33,333 |
| $10,000 | $333,329 |
| $50,000 | $1,666,645 |
| $100,000 | $3,333,289 |
$100 from 1915, decade by decade
| Year | Worth | Average CPI |
|---|---|---|
| 1925 | $173.54 | 17.5 |
| 1935 | $135.78 | 13.7 |
| 1945 | $177.99 | 18.0 |
| 1955 | $264.88 | 26.8 |
| 1965 | $311.71 | 31.5 |
| 1975 | $532.40 | 53.8 |
| 1985 | $1,064 | 107.6 |
| 1995 | $1,508 | 152.4 |
| 2005 | $1,932 | 195.3 |
| 2015 | $2,345 | 237.0 |
| 2025 | $3,185 | 321.9 |
| September 2026 | $3,333 | 336.9 |
1915 in the inflation record
- Prices rose 2.0% in 1915 (December to December), below the 3.3% average of every year since 1914: #69 of 112 from highest to lowest.
- The 1910s averaged 11.4% a year; the decade’s highest was 1918 at 20.4%.
- Prices first stood at twice their 1915 level in April 1920, and three times in September 1962.
- A dollar today buys what 3.0¢ bought in 1915.
CPI-U each month of 1915
| Month | CPI-U |
|---|---|
| January | 10.100 |
| February | 10.000 |
| March | 9.900 |
| April | 10.000 |
| May | 10.100 |
| June | 10.100 |
| July | 10.100 |
| August | 10.100 |
| September | 10.100 |
| October | 10.200 |
| November | 10.300 |
| December | 10.300 |
| Year average | 10.108 |
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 1915 worth today?
$33.33 in September 2026. Prices have risen 3233.3% since 1915, using the 1915 average CPI-U of 10.108 and the September 2026 CPI-U of 336.940 from the U.S. Bureau of Labor Statistics.
What was the inflation rate in 1915?
Prices rose 2.0% from December 1914 to December 1915 (CPI-U, not seasonally adjusted).
What is the average inflation rate since 1915?
3.20% a year, compounded, from 1915 to September 2026. At that rate prices double about every 22 years.
How much is $100 from 1915 worth today?
$3,333. Multiply any 1915 amount by 33.333 to get today’s money.