$

Value of 1981 US Dollars today

$100 in 1981
$323.43 in 2022

The inflation rate in the United States between 1981 and today has been 223.43%, which translates into a total increase of $223.43. This means that 100 dollars in 1981 are equivalent to 323.43 dollars in 2022. In other words, the purchasing power of $100 in 1981 equals $323.43 today. The average annual inflation rate between these periods has been 2.9%.

Inflation timeline in the United States (1981 - 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 1981-2021 198.01%
Cumulative inflation 1981-today 223.43%
Avg. Annual inflation 1981-2021 2.77%
CPI 1981 38.36
CPI 2021 114.33
CPI 2022-05 (latest official data) 123.32
CPI today 124.08

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 1981 and 2021, use the corresponding CPI values:

Value2021
=Value1981 ×
CPI2021/CPI1981
=$ 100 ×
114.33/38.36
$298.01

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 124.08:

Valuetoday
=Value1981 ×
CPItoday/CPI1981
=$ 100 ×
124.08/38.36
$323.43

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 40 years between 1981 and 2021 and the average inflation rate was 2.7675%. Therefore, we can resolve the formula like this:

Value2021
=PV × (1 + i)n
=$100 × (1 + 0.027675)40
$298.01

US inflation - Conversion table

Initial Value Equivalent value
$1 dollar in 1981 $2.98 dollars in 2021
$5 dollars in 1981 $14.9 dollars in 2021
$10 dollars in 1981 $29.8 dollars in 2021
$50 dollars in 1981 $149.01 dollars in 2021
$100 dollars in 1981 $298.01 dollars in 2021
$500 dollars in 1981 $1,490.07 dollars in 2021
$1,000 dollars in 1981 $2,980.14 dollars in 2021
$5,000 dollars in 1981 $14,900.72 dollars in 2021
$10,000 dollars in 1981 $29,801.45 dollars in 2021
$50,000 dollars in 1981 $149,007.24 dollars in 2021
$100,000 dollars in 1981 $298,014.48 dollars in 2021
$500,000 dollars in 1981 $1,490,072.4 dollars in 2021
$1,000,000 dollars in 1981 $2,980,144.79 dollars in 2021
Cumulative inflation From 1981 223.43%
Avg. annual inflation From 1981 2.9%
CPI 1981 38.36
CPI today 124.08

Value of Dollar over time (by year)

Period Value
1981 100
1982 106.13
1983 109.54
1984 114.25
1985 118.3
1986 120.55
1987 124.97
1988 130.06
1989 136.34
1990 143.7
1991 149.78
1992 154.32
1993 158.88
1994 163.02
1995 167.59
1996 172.5
1997 176.54
1998 179.28
1999 183.2
2000 189.39
2001 194.74
2002 197.83
2003 202.32
2004 207.74
2005 214.78
2006 221.71
2007 228.04
2008 236.79
2009 235.95
2010 239.82
2011 247.39
2012 252.51
2013 256.21
2014 260.36
2015 260.67
2016 263.96
2017 269.58
2018 276.17
2019 281.17
2020 284.64
2021 298.01
2022-05 321.47
Today 323.43

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: