Value today = amount × (CPI in September 2026 ÷ average CPI in 1913). The data is the CPI-U, all items, not seasonally adjusted, published by the U.S. Bureau of Labor Statistics. Use the calculator above to convert between any two years.
Frequently asked questions
How much is $1 from 1913 worth today?
$1 from 1913 has the same buying power as $34.09 in September 2026, based on the US Consumer Price Index (CPI-U).
How much is $100 from 1913 worth today?
$100 in 1913 is worth about $3,409 in September 2026.
What was the inflation rate in 1913?
1913 is the first year of the official CPI series, so it has no prior-year comparison.
How much has the dollar lost since 1913?
$100 today buys what $2.93 bought in 1913. Prices are up 3,309% in total, an average of 3.17% a year.