£1 in 1820 → £1.13 in 1817

UK Inflation Calculator

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£1 in 1820 → £1.13 in 1817

UK Inflation Rate, £1 in 1820 to 1817

According to the Office for National Statistics composite price index, prices in 1817 are 12.82% higher than average prices throughout 1820. The pound experienced an average deflation rate of -3.94% per year during this period, meaning the real value of a dollar increased.

In other words, £1 in 1820 is equivalent in purchasing power to about £1.13 in 1817, a difference of £0.13 over 3 years.

The 1817 inflation rate was 13.79%. The inflation rate in 1820 was -9.30%. The 1820 inflation rate is lower compared to the average inflation rate of 2.32% per year between 1820 and 2019.


Inflation from 1820 to 1817
Cumulative price change 12.82%
Average inflation rate -3.94%
Converted amount (£1 base) £1.13
Price difference (£1 base) £0.13
CPI in 1820 11.700
CPI in 1817 13.200
Inflation in 1817 13.79%
Inflation in 1820 -9.30%

UK inflation chart from 1988 to 2017. Based on the UK Consumer Price Index.


Buying power of £1 in 1817

This chart shows calculation of buying power equivalence, often referred to as "the value of a pound" over time for £1 in 1817 (price index tracking began in 1750).

According to the Office for National Statistics, each of these GBP amounts below is equal in terms of what it could buy at the time:

Year Pound Value Inflation Rate
1817 £1.00 13.79%
1818 £1.00 0.00%
1819 £0.98 -2.27%
1820 £0.89 -9.30%
1821 £0.78 -11.97%
1822 £0.67 -13.59%
1823 £0.72 6.74%
1824 £0.78 8.42%
1825 £0.92 17.48%
1826 £0.86 -5.79%
1827 £0.81 -6.14%
1828 £0.79 -2.80%
1829 £0.78 -0.96%
1830 £0.75 -3.88%
1831 £0.83 10.10%
1832 £0.77 -7.34%
1833 £0.72 -5.94%
1834 £0.66 -8.42%
1835 £0.67 2.30%
1836 £0.75 11.24%
1837 £0.77 2.02%
1838 £0.77 0.99%
1839 £0.83 6.86%
1840 £0.84 1.83%
1841 £0.83 -1.80%
1842 £0.76 -8.26%
1843 £0.67 -11.00%
1844 £0.67 0.00%
1845 £0.70 4.49%
1846 £0.73 4.30%
1847 £0.83 12.37%
1848 £0.72 -12.84%
1849 £0.67 -6.32%
1850 £0.64 -5.62%
1851 £0.61 -3.57%
1852 £0.61 0.00%
1853 £0.67 9.88%
1854 £0.77 14.61%
1855 £0.80 2.94%
1856 £0.80 0.00%
1857 £0.76 -4.76%
1858 £0.69 -9.00%
1859 £0.68 -1.10%
1860 £0.70 3.33%
1861 £0.72 2.15%
1862 £0.70 -2.11%
1863 £0.68 -3.23%
1864 £0.67 -1.11%
1865 £0.68 1.12%
1866 £0.72 5.56%
1867 £0.77 6.32%
1868 £0.76 -0.99%
1869 £0.72 -5.00%
1870 £0.72 0.00%
1871 £0.73 1.05%
1872 £0.76 4.17%
1873 £0.79 4.00%
1874 £0.76 -3.85%
1875 £0.74 -2.00%
1876 £0.74 0.00%
1877 £0.73 -1.02%
1878 £0.72 -2.06%
1879 £0.69 -4.21%
1880 £0.71 3.30%
1881 £0.70 -1.06%
1882 £0.71 1.08%
1883 £0.70 -1.06%
1884 £0.69 -2.15%
1885 £0.67 -3.30%
1886 £0.66 -1.14%
1887 £0.65 -1.15%
1888 £0.66 1.16%
1889 £0.67 1.15%
1890 £0.67 0.00%
1891 £0.67 1.14%
1892 £0.67 0.00%
1893 £0.67 -1.12%
1894 £0.66 -1.14%
1895 £0.65 -1.15%
1896 £0.64 -1.16%
1897 £0.66 2.35%
1898 £0.66 0.00%
1899 £0.67 1.15%
1900 £0.70 4.55%
1901 £0.70 0.00%
1902 £0.70 0.00%
1903 £0.70 1.09%
1904 £0.70 0.00%
1905 £0.70 0.00%
1906 £0.70 0.00%
1907 £0.71 1.08%
1908 £0.71 0.00%
1909 £0.72 1.06%
1910 £0.73 1.05%
1911 £0.73 0.00%
1912 £0.75 3.13%
1913 £0.74 -1.01%
1914 £0.74 0.00%
1915 £0.83 12.24%
1916 £0.98 18.18%
1917 £1.23 25.38%
1918 £1.51 22.09%
1919 £1.66 10.05%
1920 £1.92 15.53%
1921 £1.75 -8.70%
1922 £1.51 -13.85%
1923 £1.42 -6.03%
1924 £1.41 -0.53%
1925 £1.41 0.00%
1926 £1.40 -0.54%
1927 £1.36 -2.70%
1928 £1.36 0.00%
1929 £1.35 -1.11%
1930 £1.31 -2.81%
1931 £1.26 -4.05%
1932 £1.23 -2.41%
1933 £1.20 -2.47%
1934 £1.20 0.00%
1935 £1.20 0.63%
1936 £1.21 0.63%
1937 £1.26 3.75%
1938 £1.27 1.20%
1939 £1.31 2.98%
1940 £1.53 16.76%
1941 £1.70 10.89%
1942 £1.82 7.14%
1943 £1.88 3.33%
1944 £1.93 2.82%
1945 £1.98 2.75%
1946 £2.05 3.05%
1947 £2.19 7.04%
1948 £2.36 7.61%
1949 £2.42 2.89%
1950 £2.50 3.13%
1951 £2.73 9.09%
1952 £2.98 9.17%
1953 £3.07 3.05%
1954 £3.13 1.98%
1955 £3.27 4.36%
1956 £3.43 5.10%
1957 £3.55 3.53%
1958 £3.67 3.20%
1959 £3.68 0.41%
1960 £3.72 1.03%
1961 £3.85 3.46%
1962 £4.02 4.33%
1963 £4.09 1.89%
1964 £4.23 3.33%
1965 £4.42 4.66%
1966 £4.60 3.94%
1967 £4.72 2.64%
1968 £4.94 4.65%
1969 £5.20 5.37%
1970 £5.54 6.40%
1971 £6.06 9.44%
1972 £6.49 7.13%
1973 £7.08 9.10%
1974 £8.22 16.04%
1975 £10.21 24.24%
1976 £11.90 16.54%
1977 £13.79 15.85%
1978 £14.93 8.30%
1979 £16.93 13.39%
1980 £19.98 17.99%
1981 £22.35 11.87%
1982 £24.27 8.61%
1983 £25.39 4.59%
1984 £26.65 4.98%
1985 £28.27 6.08%
1986 £29.23 3.40%
1987 £30.45 4.17%
1988 £31.95 4.90%
1989 £34.43 7.78%
1990 £37.69 9.46%
1991 £39.90 5.87%
1992 £41.39 3.74%
1993 £42.05 1.59%
1994 £43.07 2.41%
1995 £44.56 3.47%
1996 £45.64 2.41%
1997 £47.07 3.14%
1998 £48.68 3.43%
1999 £49.43 1.54%
2000 £50.89 2.96%
2001 £51.80 1.77%
2002 £52.66 1.67%
2003 £54.18 2.89%
2004 £55.80 2.98%
2005 £57.37 2.82%
2006 £59.20 3.20%
2007 £61.74 4.29%
2008 £64.20 3.99%
2009 £63.86 -0.53%
2010 £66.81 4.61%
2011 £70.29 5.20%
2012 £72.55 3.21%
2013 £74.75 3.04%
2014 £76.52 2.36%
2015 £77.27 0.99%
2016 £78.61 1.74%
2017 £81.43 3.58%
2018 £83.45 2.48%
2019 £84.96 1.80%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.

How to Calculate Inflation Rate for £1, 1817 to 1820

This inflation calculator uses the following inflation rate formula:

CPI in 1817CPI in 1820
×
1820 GBP value
=
1817 GBP value

Then plug in historical CPI values. The UK CPI was 11.7 in the year 1820 and 13.2 in 1817:

13.211.7
×
£1
=
£1.13

£1 in 1820 has the same "purchasing power" or "buying power" as £1.13 in 1817.

To get the total inflation rate for the 3 years between 1817 and 1820, we use the following formula:

CPI in 1817 - CPI in 1820CPI in 1820
×
100
=
Cumulative inflation rate (3 years)

Plugging in the values to this equation, we get:

13.2 - 11.711.7
×
100
=
13%

News headlines from 1817

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

  • The Astronomical Society of London, is founded, it is now known as the Royal Astronomical Society.
  • Fabian Gottlieb von Bellingshausen and Mikhail Lazarev discover Antarctica.

Data Source & Citation

Raw data for these calculations comes from the composite price index published by the UK Office for National Statistics (ONS). A composite index is created by combining price data from several different published sources, both official and unofficial. The Consumer Price Index, normally used to compute inflation, has only been tracked since 1988. All inflation calculations after 1988 use the Office for National Statistics' Consumer Price Index, except for 2017, which is based on The Bank of England's forecast.

You may use the following MLA citation for this page: “£1 in 1820 → 1817 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 17 Nov. 2019, https://www.officialdata.org/1820-GBP-in-1817?amount=1.

Special thanks to QuickChart for providing downloadable chart images.

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


About the author

Ian Webster is an engineer and data expert based in San Mateo, California. He has worked for Google, NASA, and consulted for governments around the world on data pipelines and data analysis. Disappointed by the lack of clear resources on the impacts of inflation on economic indicators, Ian believes this website serves as a valuable public tool. Ian earned his degree in Computer Science from Dartmouth College.

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» Read more about inflation and investment.

Inflation from 1820 to 1817
Cumulative price change 12.82%
Average inflation rate -3.94%
Converted amount (£1 base) £1.13
Price difference (£1 base) £0.13
CPI in 1820 11.700
CPI in 1817 13.200
Inflation in 1817 13.79%
Inflation in 1820 -9.30%
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