CPI-U in 1955
The U.S. Consumer Price Index for All Urban Consumers (CPI-U) averaged 26.8 in 1955 (1982–84 = 100), 0.4% below the 1954 average. From December 1954 to December 1955, prices rose 0.4%. Prices in August 2026 were 12.50 times their 1955 level.
Monthly CPI-U index values, 1955
The highest monthly index in 1955 was 26.9 (November), the lowest 26.7 (January). The 12-month inflation rate ranged from −0.7% in January to +0.4% in December. Historical context — Post-war stability (1953–1965): Inflation mostly stayed between 0% and 3% a year.
| Month | CPI-U index | Change from prior month | 12-month change |
|---|---|---|---|
| January 1955 | 26.7 | 0.0% | −0.7% |
| February 1955 | 26.7 | 0.0% | −0.7% |
| March 1955 | 26.7 | 0.0% | −0.7% |
| April 1955 | 26.7 | 0.0% | −0.4% |
| May 1955 | 26.7 | 0.0% | −0.7% |
| June 1955 | 26.7 | 0.0% | −0.7% |
| July 1955 | 26.8 | +0.4% | −0.4% |
| August 1955 | 26.8 | 0.0% | −0.4% |
| September 1955 | 26.9 | +0.4% | +0.4% |
| October 1955 | 26.9 | 0.0% | +0.4% |
| November 1955 | 26.9 | 0.0% | +0.4% |
| December 1955 | 26.8 | −0.4% | +0.4% |
CPI-U, U.S. city average, all items, not seasonally adjusted, 1982–84 = 100 (BLS series CUUR0000SA0). Before 2007 the BLS published the index to one decimal place. Annual average 26.8 as published by the BLS.
CPI 1955: common questions
What was the CPI in 1955?
The CPI-U annual average for 1955 was 26.8 on the 1982–84 = 100 base. Monthly values ranged from 26.7 to 26.9.
What was the inflation rate in 1955?
Measured by annual averages, consumer prices fell 0.4% in 1955; December to December the change was +0.4%.
How much is $100 from 1955 worth today?
About $1,249.93 in August 2026 prices, based on the change in CPI-U. Use the inflation calculator for other amounts.