$100 in 1770 → $93.90 in 1775

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U.S. Inflation Rate, $100 in 1770 to 1775

According to the Bureau of Labor Statistics consumer price index, prices in 1775 are 6.1% lower than prices in 1770. The dollar experienced an average deflation rate of -1.25% per year during this period.

In other words, $100 in 1770 is equivalent in purchasing power to $93.90 in 1775, a difference of $-6.10 over 5 years.

The 1770 inflation rate was 7.89%. The inflation rate in 1775 was -4.94%. The 1775 inflation rate is lower compared to the average inflation rate of 1.45% per year between 1775 and 2018.


Inflation from 1770 to 1775
Cumulative price change -6.10%
Average inflation rate -1.25%
Converted amount ($100 base) $93.90
Price difference ($100 base) $-6.10
CPI in 1770 8.200
CPI in 1775 7.700
Inflation in 1770 7.89%
Inflation in 1775 -4.94%


U.S. inflation chart since 1665


Buying power of $100 since 1770

This chart shows calculations of buying power equivalence over time for $100 in 1770 (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
1770 $100.00 7.89%
1771 $95.12 -4.88%
1772 $110.98 16.67%
1773 $104.88 -5.49%
1774 $98.78 -5.81%
1775 $93.90 -4.94%
1776 $106.10 12.99%
1777 $129.27 21.84%
1778 $168.29 30.19%
1779 $148.78 -11.59%
1780 $167.07 12.30%
1781 $135.37 -18.98%
1782 $147.56 9.01%
1783 $129.27 -12.40%
1784 $124.39 -3.77%
1785 $118.29 -4.90%
1786 $115.85 -2.06%
1787 $113.41 -2.11%
1788 $108.54 -4.30%
1789 $107.32 -1.12%
1790 $112.20 4.55%
1791 $114.63 2.17%
1792 $117.07 2.13%
1793 $120.73 3.13%
1794 $134.15 11.11%
1795 $153.66 14.55%
1796 $160.98 4.76%
1797 $154.88 -3.79%
1798 $150.00 -3.15%
1799 $150.00 0.00%
1800 $153.66 2.44%
1801 $154.88 0.79%
1802 $130.49 -15.75%
1803 $137.80 5.61%
1804 $143.90 4.42%
1805 $142.68 -0.85%
1806 $148.78 4.27%
1807 $141.46 -4.92%
1808 $153.66 8.62%
1809 $150.00 -2.38%
1810 $150.00 0.00%
1811 $159.76 6.50%
1812 $162.20 1.53%
1813 $195.12 20.30%
1814 $214.63 10.00%
1815 $187.80 -12.50%
1816 $171.95 -8.44%
1817 $162.20 -5.67%
1818 $154.88 -4.51%
1819 $154.88 0.00%
1820 $142.68 -7.87%
1821 $137.80 -3.42%
1822 $142.68 3.54%
1823 $128.05 -10.26%
1824 $118.29 -7.62%
1825 $120.73 2.06%
1826 $120.73 0.00%
1827 $121.95 1.01%
1828 $115.85 -5.00%
1829 $113.41 -2.11%
1830 $112.20 -1.08%
1831 $106.10 -5.43%
1832 $104.88 -1.15%
1833 $102.44 -2.33%
1834 $104.88 2.38%
1835 $107.32 2.33%
1836 $113.41 5.68%
1837 $117.07 3.23%
1838 $113.41 -3.12%
1839 $113.41 0.00%
1840 $106.10 -6.45%
1841 $106.10 0.00%
1842 $100.00 -5.75%
1843 $90.24 -9.76%
1844 $91.46 1.35%
1845 $92.68 1.33%
1846 $93.90 1.32%
1847 $100.00 6.49%
1848 $96.34 -3.66%
1849 $93.90 -2.53%
1850 $95.12 1.30%
1851 $93.90 -1.28%
1852 $93.90 0.00%
1853 $93.90 0.00%
1854 $102.44 9.09%
1855 $106.10 3.57%
1856 $103.66 -2.30%
1857 $106.10 2.35%
1858 $100.00 -5.75%
1859 $101.22 1.22%
1860 $101.22 0.00%
1861 $107.32 6.02%
1862 $123.17 14.77%
1863 $153.66 24.75%
1864 $191.46 24.60%
1865 $198.78 3.82%
1866 $193.90 -2.45%
1867 $180.49 -6.92%
1868 $173.17 -4.05%
1869 $165.85 -4.23%
1870 $159.76 -3.68%
1871 $148.78 -6.87%
1872 $148.78 0.00%
1873 $146.34 -1.64%
1874 $139.02 -5.00%
1875 $134.15 -3.51%
1876 $130.49 -2.73%
1877 $128.05 -1.87%
1878 $121.95 -4.76%
1879 $121.95 0.00%
1880 $124.39 2.00%
1881 $124.39 0.00%
1882 $124.39 0.00%
1883 $123.17 -0.98%
1884 $119.51 -2.97%
1885 $118.29 -1.02%
1886 $114.63 -3.09%
1887 $115.85 1.06%
1888 $115.85 0.00%
1889 $112.20 -3.16%
1890 $110.98 -1.09%
1891 $110.98 0.00%
1892 $110.98 0.00%
1893 $109.76 -1.10%
1894 $104.88 -4.44%
1895 $102.44 -2.33%
1896 $102.44 0.00%
1897 $101.22 -1.19%
1898 $101.22 0.00%
1899 $101.22 0.00%
1900 $102.44 1.20%
1901 $103.66 1.19%
1902 $104.88 1.18%
1903 $107.32 2.33%
1904 $108.54 1.14%
1905 $107.32 -1.12%
1906 $109.76 2.27%
1907 $114.63 4.44%
1908 $112.20 -2.13%
1909 $110.98 -1.09%
1910 $115.85 4.40%
1911 $115.85 0.00%
1912 $118.29 2.11%
1913 $120.73 2.06%
1914 $121.95 1.01%
1915 $123.17 1.00%
1916 $132.93 7.92%
1917 $156.10 17.43%
1918 $184.15 17.97%
1919 $210.98 14.57%
1920 $243.90 15.61%
1921 $218.29 -10.50%
1922 $204.88 -6.15%
1923 $208.54 1.79%
1924 $208.54 0.00%
1925 $213.41 2.34%
1926 $215.85 1.14%
1927 $212.20 -1.69%
1928 $208.54 -1.72%
1929 $208.54 0.00%
1930 $203.66 -2.34%
1931 $185.37 -8.98%
1932 $167.07 -9.87%
1933 $158.54 -5.11%
1934 $163.41 3.08%
1935 $167.07 2.24%
1936 $169.51 1.46%
1937 $175.61 3.60%
1938 $171.95 -2.08%
1939 $169.51 -1.42%
1940 $170.73 0.72%
1941 $179.27 5.00%
1942 $198.78 10.88%
1943 $210.98 6.13%
1944 $214.63 1.73%
1945 $219.51 2.27%
1946 $237.80 8.33%
1947 $271.95 14.36%
1948 $293.90 8.07%
1949 $290.24 -1.24%
1950 $293.90 1.26%
1951 $317.07 7.88%
1952 $323.17 1.92%
1953 $325.61 0.75%
1954 $328.05 0.75%
1955 $326.83 -0.37%
1956 $331.71 1.49%
1957 $342.68 3.31%
1958 $352.44 2.85%
1959 $354.88 0.69%
1960 $360.98 1.72%
1961 $364.63 1.01%
1962 $368.29 1.00%
1963 $373.17 1.32%
1964 $378.05 1.31%
1965 $384.15 1.61%
1966 $395.12 2.86%
1967 $407.32 3.09%
1968 $424.39 4.19%
1969 $447.56 5.46%
1970 $473.17 5.72%
1971 $493.90 4.38%
1972 $509.76 3.21%
1973 $541.46 6.22%
1974 $601.22 11.04%
1975 $656.10 9.13%
1976 $693.90 5.76%
1977 $739.02 6.50%
1978 $795.12 7.59%
1979 $885.37 11.35%
1980 $1,004.88 13.50%
1981 $1,108.54 10.32%
1982 $1,176.83 6.16%
1983 $1,214.63 3.21%
1984 $1,267.07 4.32%
1985 $1,312.20 3.56%
1986 $1,336.59 1.86%
1987 $1,385.37 3.65%
1988 $1,442.68 4.14%
1989 $1,512.20 4.82%
1990 $1,593.90 5.40%
1991 $1,660.98 4.21%
1992 $1,710.98 3.01%
1993 $1,762.20 2.99%
1994 $1,807.32 2.56%
1995 $1,858.54 2.83%
1996 $1,913.41 2.95%
1997 $1,957.32 2.29%
1998 $1,987.80 1.56%
1999 $2,031.71 2.21%
2000 $2,100.00 3.36%
2001 $2,159.76 2.85%
2002 $2,193.90 1.58%
2003 $2,243.90 2.28%
2004 $2,303.66 2.66%
2005 $2,381.71 3.39%
2006 $2,458.54 3.23%
2007 $2,528.56 2.85%
2008 $2,625.65 3.84%
2009 $2,616.30 -0.36%
2010 $2,659.22 1.64%
2011 $2,743.16 3.16%
2012 $2,799.93 2.07%
2013 $2,840.94 1.46%
2014 $2,887.02 1.62%
2015 $2,890.45 0.12%
2016 $2,926.91 1.26%
2017 $2,989.27 2.13%
2018 $3,078.52 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 £100.00 in 1770 would be equivalent to £112.90 in 1775, an absolute change of £12.90 and a cumulative change of 12.90%.

Compare these numbers to the US's overall absolute change of $-6.10 and total percent change of -6.10%.


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 1770 and 1775.

Compare these values to the overall average of -1.25% per year:

Category Avg Inflation (%) Total Inflation (%) $100 in 1770 → 1775
Food 0.00 0.00 100.00
Shelter 0.00 0.00 100.00
Energy 0.00 0.00 100.00
Apparel 0.00 0.00 100.00
New vehicles 0.00 0.00 100.00
Used cars and trucks 0.00 0.00 100.00
Transportation services 0.00 0.00 100.00
Medical care services 0.00 0.00 100.00
Medical care commodities 0.00 0.00 100.00

It's important to note that not all categories may be tracked since 1770. This table and visualization use the earliest available data for each category.



How to Calculate Inflation Rate for $100, 1770 to 1775

This inflation calculator uses the following inflation rate formula:

CPI in 1775CPI in 1770
×
1770 USD value
=
1775 USD value

Then plug in historical CPI values. The U.S. CPI was 8.2 in the year 1770 and 7.7 in 1775:

7.78.2
×
$100
=
$93.90

$100 in 1770 has the same "purchasing power" or "buying power" as $93.90 in 1775.

To get the total inflation rate for the 5 years between 1770 and 1775, we use the following formula:

CPI in 1775 - CPI in 1770CPI in 1770
×
100
=
Cumulative inflation rate (5 years)

Plugging in the values to this equation, we get:

7.7 - 8.28.2
×
100
=
-6%

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: “$100 in 1770 → 1775 | Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 13 Nov. 2018, https://www.officialdata.org/1770-dollars-in-1775?amount=100.

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


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