# \$1 in 1940 → \$17.70 in 2018

## Inflation Calculator

\$

### U.S. Inflation Rate, 1940-2018 (\$1)

According to the Bureau of Labor Statistics consumer price index, the dollar experienced an average inflation rate of 3.75% per year. Prices in 2018 are 1670.0% higher than prices in 1940.

In other words, \$1 in the year 1940 is equivalent in purchasing power to \$17.70 in 2018, a difference of \$16.70 over 78 years.

The current inflation rate in 2018 is 1.26%1. If this number holds, \$1 today will be equivalent to \$1.01 next year.

 Cumulative price change 1670.00% Average inflation rate 3.75% Price difference (\$1 base) \$16.70 CPI in 1940 14 CPI in 2018 247.867

#### Inflation rates for specific categories

Women's apparel · Dental services · Indoor plants and flowers · More

S&P 500 price · S&P 500 earnings · Shiller P/E

### How to calculate the inflation rate for \$1 since 1940

CPI in 2018 / CPI in 1940 * 1940 USD value = 2018 USD value

Then plug in historical CPI values. The U.S. CPI was 14 in the year 1940 and 247.867 in 2018:

247.867 / 14 * \$1 = \$17.70

\$1 in 1940 has the same "purchasing power" as \$17.70 in 2018.

### Inflation Data Source

Raw data for these calculations comes from the Bureau of Labor Statistics' (CPI), established in 1913. Inflation data from 1665 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University.

You may use the following MLA citation for this page: “\$1 in 1940 → 2018 | Inflation Calculator.” FinanceRef Inflation Calculator, Alioth Finance, 14 Feb. 2018, http://www.in2013dollars.com/1940-in-2016-dollars?amount=1.