$100 in 1955 is worth $243.48 in 1978

2.43× price rise

Average US inflation: 3.94% a year over 23 years. Prices first doubled by 1975. Highest year: 1974 (11.0%). Lowest: 1959 (0.9%).

Converter

1955in 19781978 amount in 1955 money
$1$2.43$0.41
$10$24.35$4.11
$100$243.48$41.07
$1,000$2,434.77$410.72
$10,000$24,347.69$4,107.17
$100,000$243,476.91$41,071.66

Year by year (value of $100 from 1955)

YearValueInflation
1955$100.00
1956$101.471.5%
1957$104.923.4%
1958$107.782.7%
1959$108.790.9%
1960$110.411.5%
1961$111.591.1%
1962$112.901.2%
1963$114.321.3%
1964$115.831.3%
1965$117.661.6%
1966$121.183.0%
1967$124.552.8%
1968$129.844.2%
1969$136.905.4%
1970$144.955.9%
1971$151.084.2%
1972$156.033.3%
1973$165.796.3%
1974$184.0511.0%
1975$200.879.1%
1976$212.475.8%
1977$226.226.5%
1978$243.487.6%

1955–1977 · 1955–1979 · All years

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How much is $100 from 1955 worth in 1978?

$100 in 1955 had about the same buying power as $243.48 in 1978, based on US consumer price index data.

What was the average inflation rate in US from 1955 to 1978?

About 3.94% per year, compounding to a 143.5% total rise in prices over 23 years.

Which year between 1955 and 1978 had the highest inflation?

1974 saw the largest annual rise in the index (11.0%); the lowest was 1959 (0.9%).


Historical statistics for education only. Not investment advice. US CPI: U.S. Bureau of Labor Statistics CPI-U (public domain), annual averages; 2026 = Sep 2026 index. India CPI: World Bank WDI FP.CPI.TOTL (source IMF IFS), licensed CC BY 4.0. INR/USD: Federal Reserve Board H.10. Sources & method · Embed this calculator · BacktestCard