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Inflation calculator - US Dollar

$11 in 1985
$26.14 in 2019

The cumulative inflation rate in the United States between 1985 and 2019 was 137.67%, meaning that overall prices were 2.38 times higher than they were in 1985. In other words, the purchasing power of $11 in 1985 was equivalent to $26.14 in 2019. The average annual inflation rate over this period was 2.58%.

Inflation timeline in the United States (1985 - 2019)

The chart below shows how the value of $11 changes over time when adjusted for inflation, based on Consumer Price Index (CPI) data. All values are equivalent in terms of purchasing power, indicating how much money would be needed each year to buy the same goods or services.

All calculations are performed in US dollars with six-decimal precision, though displayed values are rounded to two decimals for readability. Inflation figures are sourced from official government and international reports released monthly.

The following table contains relevant indicators:

Indicator Value
Cumulative inflation from 1985 to 2019 137.67%
Avg. Annual inflation from 1985 to 2019 2.58%
CPI 1985 107.57
CPI 2019 255.66

How to calculate the time value of money with inflation data?

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 1985 and 2019, use the corresponding CPI values:

Value2019
=Value1985 ×
CPI2019/CPI1985
=$ 11 ×
255.66/107.57
$26.14

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 $11 worth today. There are 34 years between 1985 and 2019 and the average inflation rate was 2.579%. Therefore, we can resolve the formula like this:

Value2019
=PV × (1 + i)n
=$11 × (1 + 0.02579)34
$26.14

US inflation - Conversion table

Initial Value Equivalent value
$1 dollar in 1985 $2.38 dollars in 2019
$5 dollars in 1985 $11.88 dollars in 2019
$10 dollars in 1985 $23.77 dollars in 2019
$50 dollars in 1985 $118.84 dollars in 2019
$100 dollars in 1985 $237.67 dollars in 2019
$500 dollars in 1985 $1,188.37 dollars in 2019
$1,000 dollars in 1985 $2,376.73 dollars in 2019
$5,000 dollars in 1985 $11,883.67 dollars in 2019
$10,000 dollars in 1985 $23,767.35 dollars in 2019
$50,000 dollars in 1985 $118,836.73 dollars in 2019
$100,000 dollars in 1985 $237,673.46 dollars in 2019
$500,000 dollars in 1985 $1,188,367.29 dollars in 2019
$1,000,000 dollars in 1985 $2,376,734.58 dollars in 2019
Cumulative inflation 1985-2019 137.67%
Avg. annual inflation 1985-2019 2.58%
CPI 1985 107.57
CPI 2019 255.66

Value of Dollar over time (by year)

Period Value
1985 11
1986 11.21
1987 11.62
1988 12.09
1989 12.68
1990 13.36
1991 13.93
1992 14.35
1993 14.77
1994 15.16
1995 15.58
1996 16.04
1997 16.41
1998 16.67
1999 17.03
2000 17.61
2001 18.11
2002 18.39
2003 18.81
2004 19.32
2005 19.97
2006 20.62
2007 21.2
2008 22.02
2009 21.94
2010 22.3
2011 23
2012 23.48
2013 23.82
2014 24.21
2015 24.24
2016 24.54
2017 25.07
2018 25.68
2019 26.14

All available years

Today's value of US dollars by year:

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