£1 in 1815 is worth £0.92 in 1820

Value of £1 from 1815 to 1820

According to the Office for National Statistics composite price index, prices in 1820 are 7.87% lower than average prices since 1815. The British pound experienced an average deflation rate of -1.63% per year during this period, causing the real value of a pound to increase.

In other words, £1 in 1815 is equivalent in purchasing power to about £0.92 in 1820, a difference of £-0.08 over 5 years.

The 1815 inflation rate was -10.56%. 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 2020.


Inflation from 1815 to 1820
Cumulative price change -7.87%
Average inflation rate -1.63%
Converted amount (£1 base) £0.92
Price difference (£1 base) £-0.08
CPI in 1815 12.700
CPI in 1820 11.700
Inflation in 1815 -10.56%
Inflation in 1820 -9.30%

GBP Inflation since 1750
Annual Rate, the Office for National Statistics CPI
Download

Buying power of £1 in 1815

This chart shows a calculation of buying power equivalence for £1 in 1815 (price index tracking began in 1750).

For example, if you started with £1, you would need to end with £0.92 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

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:

Pound inflation: 1815-1820
Year Pound Value Inflation Rate
1815 £1.00 -10.56%
1816 £0.91 -8.66%
1817 £1.04 13.79%
1818 £1.04 0.00%
1819 £1.02 -2.27%
1820 £0.92 -9.30%
1821 £0.81 -11.97%
1822 £0.70 -13.59%
1823 £0.75 6.74%
1824 £0.81 8.42%
1825 £0.95 17.48%
1826 £0.90 -5.79%
1827 £0.84 -6.14%
1828 £0.82 -2.80%
1829 £0.81 -0.96%
1830 £0.78 -3.88%
1831 £0.86 10.10%
1832 £0.80 -7.34%
1833 £0.75 -5.94%
1834 £0.69 -8.42%
1835 £0.70 2.30%
1836 £0.78 11.24%
1837 £0.80 2.02%
1838 £0.80 0.99%
1839 £0.86 6.86%
1840 £0.87 1.83%
1841 £0.86 -1.80%
1842 £0.79 -8.26%
1843 £0.70 -11.00%
1844 £0.70 0.00%
1845 £0.73 4.49%
1846 £0.76 4.30%
1847 £0.86 12.37%
1848 £0.75 -12.84%
1849 £0.70 -6.32%
1850 £0.66 -5.62%
1851 £0.64 -3.57%
1852 £0.64 0.00%
1853 £0.70 9.88%
1854 £0.80 14.61%
1855 £0.83 2.94%
1856 £0.83 0.00%
1857 £0.79 -4.76%
1858 £0.72 -9.00%
1859 £0.71 -1.10%
1860 £0.73 3.33%
1861 £0.75 2.15%
1862 £0.73 -2.11%
1863 £0.71 -3.23%
1864 £0.70 -1.11%
1865 £0.71 1.12%
1866 £0.75 5.56%
1867 £0.80 6.32%
1868 £0.79 -0.99%
1869 £0.75 -5.00%
1870 £0.75 0.00%
1871 £0.76 1.05%
1872 £0.79 4.17%
1873 £0.82 4.00%
1874 £0.79 -3.85%
1875 £0.77 -2.00%
1876 £0.77 0.00%
1877 £0.76 -1.02%
1878 £0.75 -2.06%
1879 £0.72 -4.21%
1880 £0.74 3.30%
1881 £0.73 -1.06%
1882 £0.74 1.08%
1883 £0.73 -1.06%
1884 £0.72 -2.15%
1885 £0.69 -3.30%
1886 £0.69 -1.14%
1887 £0.68 -1.15%
1888 £0.69 1.16%
1889 £0.69 1.15%
1890 £0.69 0.00%
1891 £0.70 1.14%
1892 £0.70 0.00%
1893 £0.69 -1.12%
1894 £0.69 -1.14%
1895 £0.68 -1.15%
1896 £0.67 -1.16%
1897 £0.69 2.35%
1898 £0.69 0.00%
1899 £0.69 1.15%
1900 £0.72 4.55%
1901 £0.72 0.00%
1902 £0.72 0.00%
1903 £0.73 1.09%
1904 £0.73 0.00%
1905 £0.73 0.00%
1906 £0.73 0.00%
1907 £0.74 1.08%
1908 £0.74 0.00%
1909 £0.75 1.06%
1910 £0.76 1.05%
1911 £0.76 0.00%
1912 £0.78 3.13%
1913 £0.77 -1.01%
1914 £0.77 0.00%
1915 £0.87 12.24%
1916 £1.02 18.18%
1917 £1.28 25.38%
1918 £1.57 22.09%
1919 £1.72 10.05%
1920 £1.99 15.53%
1921 £1.82 -8.70%
1922 £1.57 -13.85%
1923 £1.47 -6.03%
1924 £1.46 -0.53%
1925 £1.46 0.00%
1926 £1.46 -0.54%
1927 £1.42 -2.70%
1928 £1.42 0.00%
1929 £1.40 -1.11%
1930 £1.36 -2.81%
1931 £1.31 -4.05%
1932 £1.28 -2.41%
1933 £1.24 -2.47%
1934 £1.24 0.00%
1935 £1.25 0.63%
1936 £1.26 0.63%
1937 £1.31 3.75%
1938 £1.32 1.20%
1939 £1.36 2.98%
1940 £1.59 16.76%
1941 £1.76 10.89%
1942 £1.89 7.14%
1943 £1.95 3.33%
1944 £2.01 2.82%
1945 £2.06 2.75%
1946 £2.13 3.05%
1947 £2.28 7.04%
1948 £2.45 7.61%
1949 £2.52 2.89%
1950 £2.60 3.13%
1951 £2.83 9.09%
1952 £3.09 9.17%
1953 £3.19 3.05%
1954 £3.25 1.98%
1955 £3.39 4.36%
1956 £3.57 5.10%
1957 £3.69 3.53%
1958 £3.81 3.20%
1959 £3.83 0.41%
1960 £3.87 1.03%
1961 £4.00 3.46%
1962 £4.17 4.33%
1963 £4.25 1.89%
1964 £4.39 3.33%
1965 £4.60 4.66%
1966 £4.78 3.94%
1967 £4.91 2.64%
1968 £5.13 4.65%
1969 £5.41 5.37%
1970 £5.76 6.40%
1971 £6.30 9.44%
1972 £6.75 7.13%
1973 £7.36 9.10%
1974 £8.54 16.04%
1975 £10.61 24.24%
1976 £12.37 16.54%
1977 £14.33 15.85%
1978 £15.52 8.30%
1979 £17.60 13.39%
1980 £20.76 17.99%
1981 £23.23 11.87%
1982 £25.23 8.61%
1983 £26.39 4.59%
1984 £27.70 4.98%
1985 £29.39 6.08%
1986 £30.39 3.40%
1987 £31.65 4.17%
1988 £33.20 4.90%
1989 £35.79 7.78%
1990 £39.17 9.46%
1991 £41.47 5.87%
1992 £43.02 3.74%
1993 £43.71 1.59%
1994 £44.76 2.41%
1995 £46.31 3.47%
1996 £47.43 2.41%
1997 £48.92 3.14%
1998 £50.60 3.43%
1999 £51.38 1.54%
2000 £52.90 2.96%
2001 £53.83 1.77%
2002 £54.73 1.67%
2003 £56.31 2.89%
2004 £57.99 2.98%
2005 £59.63 2.82%
2006 £61.54 3.20%
2007 £64.17 4.29%
2008 £66.73 3.99%
2009 £66.38 -0.53%
2010 £69.44 4.61%
2011 £73.06 5.20%
2012 £75.40 3.21%
2013 £77.69 3.04%
2014 £79.53 2.36%
2015 £80.31 0.99%
2016 £81.71 1.74%
2017 £84.64 3.58%
2018 £86.74 2.48%
2019 £88.30 1.80%
2020 £89.63 1.50%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.

This conversion table shows various other 1815 amounts in 1820 pounds, based on the -7.87% change in prices:

Conversion Table: Value of a pound in 1820
Initial value Equivalent value
£1 pound in 1815 £0.92 pounds in 1820
£5 pounds in 1815 £4.61 pounds in 1820
£10 pounds in 1815 £9.21 pounds in 1820
£50 pounds in 1815 £46.06 pounds in 1820
£100 pounds in 1815 £92.13 pounds in 1820
£500 pounds in 1815 £460.63 pounds in 1820
£1,000 pounds in 1815 £921.26 pounds in 1820
£5,000 pounds in 1815 £4,606.30 pounds in 1820
£10,000 pounds in 1815 £9,212.60 pounds in 1820
£50,000 pounds in 1815 £46,062.99 pounds in 1820
£100,000 pounds in 1815 £92,125.98 pounds in 1820
£500,000 pounds in 1815 £460,629.92 pounds in 1820
£1,000,000 pounds in 1815 £921,259.84 pounds in 1820

How to Calculate Inflation Rate for £1, 1815 to 1820

Our calculations use the following inflation rate formula to calculate the change in value between 1815 and 1820:

CPI in 1820 CPI in 1815
×
1815 GBP value
=
1820 GBP value

Then plug in historical CPI values. The U.K. CPI was 12.7 in the year 1815 and 11.7 in 1820:

11.712.7
×
£1
=
£0.92

£1 in 1815 has the same "purchasing power" or "buying power" as £0.92 in 1820.

To get the total inflation rate for the 5 years between 1815 and 1820, we use the following formula:

CPI in 1820 - CPI in 1815CPI in 1815
×
100
=
Cumulative inflation rate (5 years)

Plugging in the values to this equation, we get:

11.7 - 12.712.7
×
100
=
-8%

News headlines from 1815

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

  • Napoleon leaves Elba in order to reconnect with his supporters in France.
  • Napoleon returns to Paris and begins his 100-day rule until his defeat in the Battle of Waterloo.
  • The Holy Alliance is signed by Russia, Prussia and Austria
  • Napoleon Bonaparte arrives on the island of Saint Hellena to begin his exile

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 1815 → 1820 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 27 May. 2020, https://www.officialdata.org/1815-GBP-in-1820?amount=1.

Special thanks to QuickChart for providing downloadable chart images.

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


Ian Webster

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 1815 to 1820
Cumulative price change -7.87%
Average inflation rate -1.63%
Converted amount (£1 base) £0.92
Price difference (£1 base) £-0.08
CPI in 1815 12.700
CPI in 1820 11.700
Inflation in 1815 -10.56%
Inflation in 1820 -9.30%