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Value of 1977 US Dollars today

$100 in 1977
$485.67 in 2022

The inflation rate in the United States between 1977 and today has been 385.67%, which translates into a total increase of $385.67. This means that 100 dollars in 1977 are equivalent to 485.67 dollars in 2022. In other words, the purchasing power of $100 in 1977 equals $485.67 today. The average annual inflation rate between these periods has been 3.57%.

Inflation timeline in the United States (1977 - 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 1977-2021 347.08%
Cumulative inflation 1977-today 385.67%
Avg. Annual inflation 1977-2021 3.46%
CPI 1977 25.57
CPI 2021 114.33
CPI 2022-05 (latest official data) 123.32
CPI today 124.19

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 1977 and 2021, use the corresponding CPI values:

Value2021
=Value1977 ×
CPI2021/CPI1977
=$ 100 ×
114.33/25.57
$447.08

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 124.19:

Valuetoday
=Value1977 ×
CPItoday/CPI1977
=$ 100 ×
124.19/25.57
$485.67

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 44 years between 1977 and 2021 and the average inflation rate was 3.4622%. Therefore, we can resolve the formula like this:

Value2021
=PV × (1 + i)n
=$100 × (1 + 0.034622)44
$447.08

US inflation - Conversion table

Initial Value Equivalent value
$1 dollar in 1977 $4.47 dollars in 2021
$5 dollars in 1977 $22.35 dollars in 2021
$10 dollars in 1977 $44.71 dollars in 2021
$50 dollars in 1977 $223.54 dollars in 2021
$100 dollars in 1977 $447.08 dollars in 2021
$500 dollars in 1977 $2,235.42 dollars in 2021
$1,000 dollars in 1977 $4,470.83 dollars in 2021
$5,000 dollars in 1977 $22,354.16 dollars in 2021
$10,000 dollars in 1977 $44,708.33 dollars in 2021
$50,000 dollars in 1977 $223,541.63 dollars in 2021
$100,000 dollars in 1977 $447,083.25 dollars in 2021
$500,000 dollars in 1977 $2,235,416.27 dollars in 2021
$1,000,000 dollars in 1977 $4,470,832.53 dollars in 2021
Cumulative inflation From 1977 385.67%
Avg. annual inflation From 1977 3.57%
CPI 1977 25.57
CPI today 124.19

Value of Dollar over time (by year)

Period Value
1977 100
1978 107.63
1979 119.74
1980 135.97
1981 150.02
1982 159.22
1983 164.33
1984 171.4
1985 177.48
1986 180.85
1987 187.47
1988 195.12
1989 204.54
1990 215.58
1991 224.71
1992 231.51
1993 238.35
1994 244.56
1995 251.42
1996 258.79
1997 264.84
1998 268.95
1999 274.84
2000 284.12
2001 292.15
2002 296.78
2003 303.52
2004 311.65
2005 322.22
2006 332.61
2007 342.1
2008 355.24
2009 353.97
2010 359.78
2011 371.14
2012 378.82
2013 384.36
2014 390.6
2015 391.06
2016 396
2017 404.43
2018 414.31
2019 421.82
2020 427.02
2021 447.08
2022-05 482.27
Today 485.67

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: