$

Value of 1991 US Dollars today

$100 in 1991
$216.08 in 2022

The inflation rate in the United States between 1991 and today has been 116.08%, which translates into a total increase of $116.08. This means that 100 dollars in 1991 are equivalent to 216.08 dollars in 2022. In other words, the purchasing power of $100 in 1991 equals $216.08 today. The average annual inflation rate between these periods has been 2.52%.

Inflation timeline in the United States (1991 - 2022)

The following chart depicts the equivalence of $100 due to compound 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 extrapolated from the latest 12-month rolling average official data.

The following table contains relevant indicators:

Indicator Value
Cumulative inflation 1991-2021 98.96%
Cumulative inflation 1991-today 116.08%
Avg. Annual inflation 1991-2021 2.32%
CPI 1991 57.46
CPI 2021 114.33
CPI 2022-05 (latest official data) 123.32
CPI today 124.16

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 Consumer Price Index (CPI) formula or the compound interest formula.

Using the CPI formula

When we have both the start and end years, we can use the following formula:

Valuet =Value0 ×
CPIt/CPI0

To obtain the values equivalent in buying power between 1991 and 2021, use the corresponding CPI values:

Value2021
=Value1991 ×
CPI2021/CPI1991
=$ 100 ×
114.33/57.46
$198.96

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 124.16:

Valuetoday
=Value1991 ×
CPItoday/CPI1991
=$ 100 ×
124.16/57.46
$216.08

Alternative: Using the compound interest formula

Given that money changes with time as a result of an inflation rate that acts as compound interest, we can use the following formula: 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 30 years between 1991 and 2021 and the average inflation rate was 2.3196%. Therefore, we can resolve the formula like this:

Value2021
=PV × (1 + i)n
=$100 × (1 + 0.023196)30
$198.96

US inflation - Conversion table

Initial Value Equivalent value
$1 dollar in 1991 $1.99 dollars in 2021
$5 dollars in 1991 $9.95 dollars in 2021
$10 dollars in 1991 $19.9 dollars in 2021
$50 dollars in 1991 $99.48 dollars in 2021
$100 dollars in 1991 $198.96 dollars in 2021
$500 dollars in 1991 $994.81 dollars in 2021
$1,000 dollars in 1991 $1,989.62 dollars in 2021
$5,000 dollars in 1991 $9,948.1 dollars in 2021
$10,000 dollars in 1991 $19,896.2 dollars in 2021
$50,000 dollars in 1991 $99,481 dollars in 2021
$100,000 dollars in 1991 $198,962 dollars in 2021
$500,000 dollars in 1991 $994,810.02 dollars in 2021
$1,000,000 dollars in 1991 $1,989,620.04 dollars in 2021
Cumulative inflation From 1991 116.08%
Avg. annual inflation From 1991 2.52%
CPI 1991 57.46
CPI today 124.16

Value of Dollar over time (by year)

Period Value
1991 100
1992 103.03
1993 106.07
1994 108.84
1995 111.89
1996 115.17
1997 117.86
1998 119.69
1999 122.31
2000 126.44
2001 130.01
2002 132.07
2003 135.07
2004 138.69
2005 143.39
2006 148.02
2007 152.24
2008 158.09
2009 157.53
2010 160.11
2011 165.16
2012 168.58
2013 171.05
2014 173.83
2015 174.03
2016 176.23
2017 179.98
2018 184.38
2019 187.72
2020 190.03
2021 198.96
2022-05 214.62
Today 216.08

All available years

Today's value of US dollars by year:

1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |

Other currencies: