$1 in 1870 → $19.27 in 2018

Inflation Calculator

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U.S. Inflation Rate, $1 in 1870 to 2018

According to the Bureau of Labor Statistics consumer price index, prices in 2018 are 1,827.02% higher than prices in 1870. The dollar experienced an average inflation rate of 2.28% per year during this period.

In other words, $1 in 1870 is equivalent in purchasing power to $19.27 in 2018, a difference of $18.27 over 148 years.

The 1870 inflation rate was -3.68%. The current inflation rate (2017 to 2018) is now 2.28%1. If this number holds, $1 today will be equivalent to $1.02 next year. The current inflation rate page gives more detail on the latest official inflation rates.


Inflation from 1870 to 2018
Cumulative price change 1827.02%
Average inflation rate 2.28%
Converted amount ($1 base) $19.27
Price difference ($1 base) $18.27
CPI in 1870 13.1
CPI in 2018 252.439
Inflation in 1870 -3.68%
Inflation in 2018 2.28%


U.S. inflation chart since 1665


Buying power of $1 since 1870

This chart shows calculations of buying power equivalence over time for $1 in 1870 (price index tracking began in 1635).

According to the Bureau of Labor Statistics, each of these USD amounts below is equal in terms of what it could buy at the time:

Year USD Value Inflation Rate
1870 $1.00 -3.68%
1871 $0.93 -6.87%
1872 $0.93 0.00%
1873 $0.92 -1.64%
1874 $0.87 -5.00%
1875 $0.84 -3.51%
1876 $0.82 -2.73%
1877 $0.80 -1.87%
1878 $0.76 -4.76%
1879 $0.76 0.00%
1880 $0.78 2.00%
1881 $0.78 0.00%
1882 $0.78 0.00%
1883 $0.77 -0.98%
1884 $0.75 -2.97%
1885 $0.74 -1.02%
1886 $0.72 -3.09%
1887 $0.73 1.06%
1888 $0.73 0.00%
1889 $0.70 -3.16%
1890 $0.69 -1.09%
1891 $0.69 0.00%
1892 $0.69 0.00%
1893 $0.69 -1.10%
1894 $0.66 -4.44%
1895 $0.64 -2.33%
1896 $0.64 0.00%
1897 $0.63 -1.19%
1898 $0.63 0.00%
1899 $0.63 0.00%
1900 $0.64 1.20%
1901 $0.65 1.19%
1902 $0.66 1.18%
1903 $0.67 2.33%
1904 $0.68 1.14%
1905 $0.67 -1.12%
1906 $0.69 2.27%
1907 $0.72 4.44%
1908 $0.70 -2.13%
1909 $0.69 -1.09%
1910 $0.73 4.40%
1911 $0.73 0.00%
1912 $0.74 2.11%
1913 $0.76 2.06%
1914 $0.76 1.01%
1915 $0.77 1.00%
1916 $0.83 7.92%
1917 $0.98 17.43%
1918 $1.15 17.97%
1919 $1.32 14.57%
1920 $1.53 15.61%
1921 $1.37 -10.50%
1922 $1.28 -6.15%
1923 $1.31 1.79%
1924 $1.31 0.00%
1925 $1.34 2.34%
1926 $1.35 1.14%
1927 $1.33 -1.69%
1928 $1.31 -1.72%
1929 $1.31 0.00%
1930 $1.27 -2.34%
1931 $1.16 -8.98%
1932 $1.05 -9.87%
1933 $0.99 -5.11%
1934 $1.02 3.08%
1935 $1.05 2.24%
1936 $1.06 1.46%
1937 $1.10 3.60%
1938 $1.08 -2.08%
1939 $1.06 -1.42%
1940 $1.07 0.72%
1941 $1.12 5.00%
1942 $1.24 10.88%
1943 $1.32 6.13%
1944 $1.34 1.73%
1945 $1.37 2.27%
1946 $1.49 8.33%
1947 $1.70 14.36%
1948 $1.84 8.07%
1949 $1.82 -1.24%
1950 $1.84 1.26%
1951 $1.98 7.88%
1952 $2.02 1.92%
1953 $2.04 0.75%
1954 $2.05 0.75%
1955 $2.05 -0.37%
1956 $2.08 1.49%
1957 $2.15 3.31%
1958 $2.21 2.85%
1959 $2.22 0.69%
1960 $2.26 1.72%
1961 $2.28 1.01%
1962 $2.31 1.00%
1963 $2.34 1.32%
1964 $2.37 1.31%
1965 $2.40 1.61%
1966 $2.47 2.86%
1967 $2.55 3.09%
1968 $2.66 4.19%
1969 $2.80 5.46%
1970 $2.96 5.72%
1971 $3.09 4.38%
1972 $3.19 3.21%
1973 $3.39 6.22%
1974 $3.76 11.04%
1975 $4.11 9.13%
1976 $4.34 5.76%
1977 $4.63 6.50%
1978 $4.98 7.59%
1979 $5.54 11.35%
1980 $6.29 13.50%
1981 $6.94 10.32%
1982 $7.37 6.16%
1983 $7.60 3.21%
1984 $7.93 4.32%
1985 $8.21 3.56%
1986 $8.37 1.86%
1987 $8.67 3.65%
1988 $9.03 4.14%
1989 $9.47 4.82%
1990 $9.98 5.40%
1991 $10.40 4.21%
1992 $10.71 3.01%
1993 $11.03 2.99%
1994 $11.31 2.56%
1995 $11.63 2.83%
1996 $11.98 2.95%
1997 $12.25 2.29%
1998 $12.44 1.56%
1999 $12.72 2.21%
2000 $13.15 3.36%
2001 $13.52 2.85%
2002 $13.73 1.58%
2003 $14.05 2.28%
2004 $14.42 2.66%
2005 $14.91 3.39%
2006 $15.39 3.23%
2007 $15.83 2.85%
2008 $16.44 3.84%
2009 $16.38 -0.36%
2010 $16.65 1.64%
2011 $17.17 3.16%
2012 $17.53 2.07%
2013 $17.78 1.46%
2014 $18.07 1.62%
2015 $18.09 0.12%
2016 $18.32 1.26%
2017 $18.71 2.13%
2018 $19.27 2.99%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.

Inflation by Country

Inflation can also vary widely by country. For comparison, in the UK £1.00 in 1870 would be equivalent to £115.61 in 2018, an absolute change of £114.61 and a cumulative change of 11,460.76%.

Compare these numbers to the US's overall absolute change of $18.27 and total percent change of 1,827.02%.


Inflation by Spending Category

CPI is the weighted combination of many categories of spending that are tracked by the government. This chart shows the average rate of inflation for select CPI categories between 1870 and 2018.

Compare these values to the overall average of 2.28% per year:

Category Avg Inflation (%) Total Inflation (%) $1 in 1870 → 2018
Food 3.13 9,514.56 96.15
Shelter 4.10 38,216.52 383.17
Energy 3.88 28,069.42 281.69
Apparel 2.05 1,925.36 20.25
New vehicles 1.05 371.89 4.72
Used cars and trucks 0.61 147.44 2.47
Transportation services 3.35 12,927.26 130.27
Medical care services 5.11 159,005.06 1,591.05
Medical care commodities 4.29 49,733.25 498.33

It's important to note that not all categories may be tracked since 1870. This table and visualization use the earliest available data for each category.



How to Calculate Inflation Rate for $1 since 1870

This inflation calculator uses the following inflation rate formula:

CPI in 2018CPI in 1870
×
1870 USD value
=
2018 USD value

Then plug in historical CPI values. The U.S. CPI was 13.1 in the year 1870 and 252.439 in 2018:

252.43913.1
×
$1
=
$19.27

$1 in 1870 has the same "purchasing power" or "buying power" as $19.27 in 2018.

To get the total inflation rate for the 148 years between 1870 and 2018, we use the following formula:

CPI in 2018 - CPI in 1870CPI in 1870
×
100
=
Cumulative inflation rate (148 years)

Plugging in the values to this equation, we get:

252.439 - 13.113.1
×
100
=
1,827%

News headlines from 1870

Politics and news often influence economic performance. Here's what was happening at the time:

  • New York begins building the Brooklyn Bridge (the bridge is completed in 1883).
  • Austria inaugurates Wiener Musikverein, also known as the Great Hall, in Vienna.
  • The Carson City mint, in Nevada, starts issuing coins.

Data Source & Citation

Raw data for these calculations comes from the Bureau of Labor Statistics' (CPI), established in 1913. Inflation data from 1665 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University.

You may use the following MLA citation for this page: “$1 in 1870 → 2018 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 22 Oct. 2018, https://www.officialdata.org/1870-dollars?amount=1.

in2013dollars.com is a reference website maintained by the Official Data Foundation.


» Read more about inflation.