£1 in 1820 is worth £1.03 in 1825

Value of £1 from 1820 to 1825

According to the Office for National Statistics composite price index, prices in 1825 are 3.42% higher than average prices since 1820. The British pound experienced an average inflation rate of 0.67% per year during this period, causing the real value of a pound to decrease.

In other words, £1 in 1820 is equivalent in purchasing power to about £1.03 in 1825, a difference of £0.03 over 5 years.

The 1820 inflation rate was -9.30%. The inflation rate in 1825 was 17.48%. The 1825 inflation rate is higher compared to the average inflation rate of 2.36% per year between 1825 and 2020.


Inflation from 1820 to 1825
Cumulative price change 3.42%
Average inflation rate 0.67%
Converted amount (£1 base) £1.03
Price difference (£1 base) £0.03
CPI in 1820 11.700
CPI in 1825 12.100
Inflation in 1820 -9.30%
Inflation in 1825 17.48%

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

Buying power of £1 in 1820

This chart shows a calculation of buying power equivalence for £1 in 1820 (price index tracking began in 1750).

For example, if you started with £1, you would need to end with £1.03 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When £1 is equivalent to £1.03 over time, that means that the "real value" of a single U.K. pound decreases over time. In other words, a pound will pay for fewer items at the store.

This effect explains how inflation erodes the value of a pound over time. By calculating the value in 1820 dollars, the chart below shows how £1 is worth less over 5 years.

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: 1820-1825
Year Pound Value Inflation Rate
1820 £1.00 -9.30%
1821 £0.88 -11.97%
1822 £0.76 -13.59%
1823 £0.81 6.74%
1824 £0.88 8.42%
1825 £1.03 17.48%
1826 £0.97 -5.79%
1827 £0.91 -6.14%
1828 £0.89 -2.80%
1829 £0.88 -0.96%
1830 £0.85 -3.88%
1831 £0.93 10.10%
1832 £0.86 -7.34%
1833 £0.81 -5.94%
1834 £0.74 -8.42%
1835 £0.76 2.30%
1836 £0.85 11.24%
1837 £0.86 2.02%
1838 £0.87 0.99%
1839 £0.93 6.86%
1840 £0.95 1.83%
1841 £0.93 -1.80%
1842 £0.85 -8.26%
1843 £0.76 -11.00%
1844 £0.76 0.00%
1845 £0.79 4.49%
1846 £0.83 4.30%
1847 £0.93 12.37%
1848 £0.81 -12.84%
1849 £0.76 -6.32%
1850 £0.72 -5.62%
1851 £0.69 -3.57%
1852 £0.69 0.00%
1853 £0.76 9.88%
1854 £0.87 14.61%
1855 £0.90 2.94%
1856 £0.90 0.00%
1857 £0.85 -4.76%
1858 £0.78 -9.00%
1859 £0.77 -1.10%
1860 £0.79 3.33%
1861 £0.81 2.15%
1862 £0.79 -2.11%
1863 £0.77 -3.23%
1864 £0.76 -1.11%
1865 £0.77 1.12%
1866 £0.81 5.56%
1867 £0.86 6.32%
1868 £0.85 -0.99%
1869 £0.81 -5.00%
1870 £0.81 0.00%
1871 £0.82 1.05%
1872 £0.85 4.17%
1873 £0.89 4.00%
1874 £0.85 -3.85%
1875 £0.84 -2.00%
1876 £0.84 0.00%
1877 £0.83 -1.02%
1878 £0.81 -2.06%
1879 £0.78 -4.21%
1880 £0.80 3.30%
1881 £0.79 -1.06%
1882 £0.80 1.08%
1883 £0.79 -1.06%
1884 £0.78 -2.15%
1885 £0.75 -3.30%
1886 £0.74 -1.14%
1887 £0.74 -1.15%
1888 £0.74 1.16%
1889 £0.75 1.15%
1890 £0.75 0.00%
1891 £0.76 1.14%
1892 £0.76 0.00%
1893 £0.75 -1.12%
1894 £0.74 -1.14%
1895 £0.74 -1.15%
1896 £0.73 -1.16%
1897 £0.74 2.35%
1898 £0.74 0.00%
1899 £0.75 1.15%
1900 £0.79 4.55%
1901 £0.79 0.00%
1902 £0.79 0.00%
1903 £0.79 1.09%
1904 £0.79 0.00%
1905 £0.79 0.00%
1906 £0.79 0.00%
1907 £0.80 1.08%
1908 £0.80 0.00%
1909 £0.81 1.06%
1910 £0.82 1.05%
1911 £0.82 0.00%
1912 £0.85 3.13%
1913 £0.84 -1.01%
1914 £0.84 0.00%
1915 £0.94 12.24%
1916 £1.11 18.18%
1917 £1.39 25.38%
1918 £1.70 22.09%
1919 £1.87 10.05%
1920 £2.16 15.53%
1921 £1.97 -8.70%
1922 £1.70 -13.85%
1923 £1.60 -6.03%
1924 £1.59 -0.53%
1925 £1.59 0.00%
1926 £1.58 -0.54%
1927 £1.54 -2.70%
1928 £1.54 0.00%
1929 £1.52 -1.11%
1930 £1.48 -2.81%
1931 £1.42 -4.05%
1932 £1.38 -2.41%
1933 £1.35 -2.47%
1934 £1.35 0.00%
1935 £1.36 0.63%
1936 £1.37 0.63%
1937 £1.42 3.75%
1938 £1.44 1.20%
1939 £1.48 2.98%
1940 £1.73 16.76%
1941 £1.91 10.89%
1942 £2.05 7.14%
1943 £2.12 3.33%
1944 £2.18 2.82%
1945 £2.24 2.75%
1946 £2.31 3.05%
1947 £2.47 7.04%
1948 £2.66 7.61%
1949 £2.74 2.89%
1950 £2.82 3.13%
1951 £3.08 9.09%
1952 £3.36 9.17%
1953 £3.46 3.05%
1954 £3.53 1.98%
1955 £3.68 4.36%
1956 £3.87 5.10%
1957 £4.01 3.53%
1958 £4.14 3.20%
1959 £4.15 0.41%
1960 £4.20 1.03%
1961 £4.34 3.46%
1962 £4.53 4.33%
1963 £4.62 1.89%
1964 £4.77 3.33%
1965 £4.99 4.66%
1966 £5.19 3.94%
1967 £5.32 2.64%
1968 £5.57 4.65%
1969 £5.87 5.37%
1970 £6.25 6.40%
1971 £6.84 9.44%
1972 £7.32 7.13%
1973 £7.99 9.10%
1974 £9.27 16.04%
1975 £11.52 24.24%
1976 £13.43 16.54%
1977 £15.56 15.85%
1978 £16.85 8.30%
1979 £19.10 13.39%
1980 £22.54 17.99%
1981 £25.21 11.87%
1982 £27.38 8.61%
1983 £28.64 4.59%
1984 £30.07 4.98%
1985 £31.90 6.08%
1986 £32.98 3.40%
1987 £34.36 4.17%
1988 £36.04 4.90%
1989 £38.85 7.78%
1990 £42.52 9.46%
1991 £45.02 5.87%
1992 £46.70 3.74%
1993 £47.44 1.59%
1994 £48.59 2.41%
1995 £50.27 3.47%
1996 £51.49 2.41%
1997 £53.10 3.14%
1998 £54.92 3.43%
1999 £55.77 1.54%
2000 £57.42 2.96%
2001 £58.44 1.77%
2002 £59.41 1.67%
2003 £61.13 2.89%
2004 £62.95 2.98%
2005 £64.73 2.82%
2006 £66.79 3.20%
2007 £69.66 4.29%
2008 £72.44 3.99%
2009 £72.05 -0.53%
2010 £75.38 4.61%
2011 £79.30 5.20%
2012 £81.85 3.21%
2013 £84.33 3.04%
2014 £86.32 2.36%
2015 £87.18 0.99%
2016 £88.69 1.74%
2017 £91.87 3.58%
2018 £94.15 2.48%
2019 £95.85 1.80%
2020 £97.29 1.50%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.

This conversion table shows various other 1820 amounts in 1825 pounds, based on the 3.42% change in prices:

Conversion Table: Value of a pound in 1825
Initial value Equivalent value
£1 pound in 1820 £1.03 pounds in 1825
£5 pounds in 1820 £5.17 pounds in 1825
£10 pounds in 1820 £10.34 pounds in 1825
£50 pounds in 1820 £51.71 pounds in 1825
£100 pounds in 1820 £103.42 pounds in 1825
£500 pounds in 1820 £517.09 pounds in 1825
£1,000 pounds in 1820 £1,034.19 pounds in 1825
£5,000 pounds in 1820 £5,170.94 pounds in 1825
£10,000 pounds in 1820 £10,341.88 pounds in 1825
£50,000 pounds in 1820 £51,709.40 pounds in 1825
£100,000 pounds in 1820 £103,418.80 pounds in 1825
£500,000 pounds in 1820 £517,094.02 pounds in 1825
£1,000,000 pounds in 1820 £1,034,188.03 pounds in 1825

How to Calculate Inflation Rate for £1, 1820 to 1825

Our calculations use the following inflation rate formula to calculate the change in value between 1820 and 1825:

CPI in 1825 CPI in 1820
×
1820 GBP value
=
1825 GBP value

Then plug in historical CPI values. The U.K. CPI was 11.7 in the year 1820 and 12.1 in 1825:

12.111.7
×
£1
=
£1.03

£1 in 1820 has the same "purchasing power" or "buying power" as £1.03 in 1825.

To get the total inflation rate for the 5 years between 1820 and 1825, we use the following formula:

CPI in 1825 - CPI in 1820CPI in 1820
×
100
=
Cumulative inflation rate (5 years)

Plugging in the values to this equation, we get:

12.1 - 11.711.7
×
100
=
3%

News headlines from 1820

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 → 1825 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 4 Jun. 2020, https://www.officialdata.org/uk/inflation/1820?amount=1&endYear=1825.

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 1820 to 1825
Cumulative price change 3.42%
Average inflation rate 0.67%
Converted amount (£1 base) £1.03
Price difference (£1 base) £0.03
CPI in 1820 11.700
CPI in 1825 12.100
Inflation in 1820 -9.30%
Inflation in 1825 17.48%