# Value of 1973 US Dollars today

\$100 in 1973

\$613.41 in 2021

The inflation rate in the United States between 1973 and today has been 513.41%, which translates into a total increase of \$513.41. This means that 100 dollars in 1973 are equivalent to 613.41 dollars in 2021. In other words, the purchasing power of \$100 in 1973 equals \$613.41 today. The average annual inflation rate has been 3.77%.

## Inflation timeline in the United States (1973-2021)

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 (1973-2021) 512.88%
Total Inflation* 513.41%
Annual inflation avg. (1973-2021) 3.85%
Annual inflation avg.* 3.77%
CPI 1973 17.93
CPI 2021 109.9
CPI today* 109.99
\$1 in 1973 \$6.13 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 48 years between 1973 and 2021 and the average inflation rate has been 3.7711%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = \$100 * (1 + 0.04)48 = \$612.88

#### 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 1973 was 17.93 and the CPI today is 109.99. Therefore,

Final value = Initial value *
CPI final/CPI initial
= \$100 *
109.9/17.93
= \$612.88

### USA inflation - Conversion table

Initial Value Equivalent value
\$1 dollar in 1973 \$6.13 dollars today
\$5 dollars in 1973 \$30.67 dollars today
\$10 dollars in 1973 \$61.34 dollars today
\$50 dollars in 1973 \$306.71 dollars today
\$100 dollars in 1973 \$613.41 dollars today
\$500 dollars in 1973 \$3,067.07 dollars today
\$1,000 dollars in 1973 \$6,134.14 dollars today
\$5,000 dollars in 1973 \$30,670.68 dollars today
\$10,000 dollars in 1973 \$61,341.37 dollars today
\$50,000 dollars in 1973 \$306,706.83 dollars today
\$100,000 dollars in 1973 \$613,413.66 dollars today
\$500,000 dollars in 1973 \$3,067,068.29 dollars today
\$1,000,000 dollars in 1973 \$6,134,136.57 dollars today

Period Value
1973 100
1974 108.71
1975 122.12
1976 130.59
1977 136.94
1978 146.12
1979 159.29
1980 180.47
1981 203.06
1982 221.18
1983 229.65
1984 238.35
1985 247.76
1986 257.18
1987 260
1988 271.53
1989 283.53
1990 296.71
1991 314.82
1992 324.47
1993 333.88
1994 343.06
1995 352.24
1996 361.18
1997 373.18
1998 379.53
1999 385.65
2000 396
2001 409.41
2002 415.76
2003 425.65
2004 433.65
2005 447.76
2006 463.06
2007 474.82
2008 494.2
2009 494.65
2010 508.12
2011 515.72
2012 530.99
2013 540.24
2014 548.35
2015 552.5
2016 556.53
2017 568.08
2018 580.06
2019 591.14
2020 604.64
2021 612.88
Today 613.41