# Value of 1979 US Dollars today

\$100 in 1979

\$385.08 in 2021

The inflation rate in the United States between 1979 and today has been 285.08%, which translates into a total increase of \$285.08. This means that 100 dollars in 1979 are equivalent to 385.08 dollars in 2021. In other words, the purchasing power of \$100 in 1979 equals \$385.08 today. The average annual inflation rate has been 3.19%.

## Inflation timeline in the United States (1979-2021)

The following chart depicts the equivalence of \$100 throughout the years due to inflation and CPI changes. All values are equivalent in terms of purchasing power, which means that for each year the same goods or services could be bought with the indicated amount of money.

All calculations are performed in the local currency (USD) and using 6 decimal digits. Results show only up to 2 decimal digits to favour readability. Inflation data is provided by governments and international institutions on a monthly basis. Today's values were obtained by estimating figures from recent trends.

The following table contains relevant indicators:

Indicator Value
Total Inflation (1979-2021) 284.75%
Total Inflation* 285.08%
Annual inflation avg. (1979-2021) 3.26%
Annual inflation avg.* 3.19%
CPI 1979 28.56
CPI 2021 109.9
CPI today* 109.99
\$1 in 1979 \$3.85 in 2021

* Values extrapolated from the last official data to obtain today's values.

## How to calculate today's value of money after inflation?

There are several ways to calculate the time value of money. Depending on the data available, results can be obtained by using the compound interest formula or the Consumer Price Index (CPI) formula.

#### Using the compound interest formula

Given that money changes with time as a result of an inflation rate that acts as a compound interest, the following formula can be used: FV = PV (1 + i)n, where:

• FV: Future Value
• PV: Present Value
• i: Interest rate (inflation)
• n: Number of times the interest is compounded (i.e. # of years)

In this case, the future value represents the final amount obtained after applying the inflation rate to our initial value. In other words, it indicates how much are \$100 worth today. There are 42 years between 1979 and 2021 and the average inflation rate has been 3.1852%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = \$100 * (1 + 0.03)42 = \$384.75

#### Using the CPI formula

When the CPI for both start and end years is known, the following formula can be used:

Final value = Initial value *
CPI final/CPI initial

In this case, the CPI in 1979 was 28.56 and the CPI today is 109.99. Therefore,

Final value = Initial value *
CPI final/CPI initial
= \$100 *
109.9/28.56
= \$384.75

### USA inflation - Conversion table

Initial Value Equivalent value
\$1 dollar in 1979 \$3.85 dollars today
\$5 dollars in 1979 \$19.25 dollars today
\$10 dollars in 1979 \$38.51 dollars today
\$50 dollars in 1979 \$192.54 dollars today
\$100 dollars in 1979 \$385.08 dollars today
\$500 dollars in 1979 \$1,925.41 dollars today
\$1,000 dollars in 1979 \$3,850.82 dollars today
\$5,000 dollars in 1979 \$19,254.12 dollars today
\$10,000 dollars in 1979 \$38,508.24 dollars today
\$50,000 dollars in 1979 \$192,541.19 dollars today
\$100,000 dollars in 1979 \$385,082.39 dollars today
\$500,000 dollars in 1979 \$1,925,411.93 dollars today
\$1,000,000 dollars in 1979 \$3,850,823.86 dollars today

Period Value
1979 100
1980 113.29
1981 127.47
1982 138.85
1983 144.17
1984 149.63
1985 155.54
1986 161.45
1987 163.22
1988 170.46
1989 177.99
1990 186.26
1991 197.64
1992 203.69
1993 209.6
1994 215.36
1995 221.12
1996 226.74
1997 234.27
1998 238.26
1999 242.1
2000 248.6
2001 257.02
2002 261
2003 267.21
2004 272.23
2005 281.09
2006 290.69
2007 298.08
2008 310.25
2009 310.53
2010 318.98
2011 323.75
2012 333.34
2013 339.14
2014 344.24
2015 346.84
2016 349.37
2017 356.62
2018 364.14
2019 371.1
2020 379.58
2021 384.75
Today 385.08