# £100 in 1759 is worth £9,081.03 in 1991

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## Value of £100 from 1759 to 1991

According to the Office for National Statistics composite price index, prices in 1991 are 8,981.03% higher than average prices since 1759. The British pound experienced an average inflation rate of 1.96% per year during this period, causing the real value of a pound to decrease.

In other words, £100 in 1759 is equivalent in purchasing power to about £9,081.03 in 1991, a difference of £8,981.03 over 232 years.

The 1759 inflation rate was -7.94%. The inflation rate in 1991 was 5.87%. The 1991 inflation rate is higher compared to the average inflation rate of 2.69% per year between 1991 and 2020.

 Cumulative price change 8,981.03% Average inflation rate 1.96% Converted amount (£100 base) £9,081.03 Price difference (£100 base) £8,981.03 CPI in 1759 5.800 CPI in 1991 526.700 Inflation in 1759 -7.94% Inflation in 1991 5.87%

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

## Buying power of £100 in 1759

This chart shows a calculation of buying power equivalence for £100 in 1759 (price index tracking began in 1750).

For example, if you started with £100, you would need to end with £9,081.03 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When £100 is equivalent to £9,081.03 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 1759 dollars, the chart below shows how £100 is worth less over 232 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: 1759-1991
Year Pound Value Inflation Rate
1759 £100.00 -7.94%
1760 £96.55 -3.45%
1761 £91.38 -5.36%
1762 £94.83 3.77%
1763 £98.28 3.64%
1764 £106.90 8.77%
1765 £110.34 3.23%
1766 £112.07 1.56%
1767 £117.24 4.62%
1768 £115.52 -1.47%
1769 £106.90 -7.46%
1770 £106.90 0.00%
1771 £115.52 8.06%
1772 £127.59 10.45%
1773 £127.59 0.00%
1774 £129.31 1.35%
1775 £120.69 -6.67%
1776 £118.97 -1.43%
1777 £118.97 0.00%
1778 £122.41 2.90%
1779 £112.07 -8.45%
1780 £108.62 -3.08%
1781 £113.79 4.76%
1782 £115.52 1.52%
1783 £129.31 11.94%
1784 £131.03 1.33%
1785 £124.14 -5.26%
1786 £124.14 0.00%
1787 £124.14 0.00%
1788 £129.31 4.17%
1789 £127.59 -1.33%
1790 £129.31 1.35%
1791 £129.31 0.00%
1792 £131.03 1.33%
1793 £134.48 2.63%
1794 £146.55 8.97%
1795 £162.07 10.59%
1796 £172.41 6.38%
1797 £155.17 -10.00%
1798 £151.72 -2.22%
1799 £170.69 12.50%
1800 £232.76 36.36%
1801 £260.34 11.85%
1802 £200.00 -23.18%
1803 £189.66 -5.17%
1804 £194.83 2.73%
1805 £225.86 15.93%
1806 £217.24 -3.82%
1807 £212.07 -2.38%
1808 £220.69 4.07%
1809 £241.38 9.37%
1810 £248.28 2.86%
1811 £241.38 -2.78%
1812 £274.14 13.57%
1813 £281.03 2.52%
1814 £244.83 -12.88%
1815 £218.97 -10.56%
1816 £200.00 -8.66%
1817 £227.59 13.79%
1818 £227.59 0.00%
1819 £222.41 -2.27%
1820 £201.72 -9.30%
1821 £177.59 -11.97%
1822 £153.45 -13.59%
1823 £163.79 6.74%
1824 £177.59 8.42%
1825 £208.62 17.48%
1826 £196.55 -5.79%
1827 £184.48 -6.14%
1828 £179.31 -2.80%
1829 £177.59 -0.96%
1830 £170.69 -3.88%
1831 £187.93 10.10%
1832 £174.14 -7.34%
1833 £163.79 -5.94%
1834 £150.00 -8.42%
1835 £153.45 2.30%
1836 £170.69 11.24%
1837 £174.14 2.02%
1838 £175.86 0.99%
1839 £187.93 6.86%
1840 £191.38 1.83%
1841 £187.93 -1.80%
1842 £172.41 -8.26%
1843 £153.45 -11.00%
1844 £153.45 0.00%
1845 £160.34 4.49%
1846 £167.24 4.30%
1847 £187.93 12.37%
1848 £163.79 -12.84%
1849 £153.45 -6.32%
1850 £144.83 -5.62%
1851 £139.66 -3.57%
1852 £139.66 0.00%
1853 £153.45 9.88%
1854 £175.86 14.61%
1855 £181.03 2.94%
1856 £181.03 0.00%
1857 £172.41 -4.76%
1858 £156.90 -9.00%
1859 £155.17 -1.10%
1860 £160.34 3.33%
1861 £163.79 2.15%
1862 £160.34 -2.11%
1863 £155.17 -3.23%
1864 £153.45 -1.11%
1865 £155.17 1.12%
1866 £163.79 5.56%
1867 £174.14 6.32%
1868 £172.41 -0.99%
1869 £163.79 -5.00%
1870 £163.79 0.00%
1871 £165.52 1.05%
1872 £172.41 4.17%
1873 £179.31 4.00%
1874 £172.41 -3.85%
1875 £168.97 -2.00%
1876 £168.97 0.00%
1877 £167.24 -1.02%
1878 £163.79 -2.06%
1879 £156.90 -4.21%
1880 £162.07 3.30%
1881 £160.34 -1.06%
1882 £162.07 1.08%
1883 £160.34 -1.06%
1884 £156.90 -2.15%
1885 £151.72 -3.30%
1886 £150.00 -1.14%
1887 £148.28 -1.15%
1888 £150.00 1.16%
1889 £151.72 1.15%
1890 £151.72 0.00%
1891 £153.45 1.14%
1892 £153.45 0.00%
1893 £151.72 -1.12%
1894 £150.00 -1.14%
1895 £148.28 -1.15%
1896 £146.55 -1.16%
1897 £150.00 2.35%
1898 £150.00 0.00%
1899 £151.72 1.15%
1900 £158.62 4.55%
1901 £158.62 0.00%
1902 £158.62 0.00%
1903 £160.34 1.09%
1904 £160.34 0.00%
1905 £160.34 0.00%
1906 £160.34 0.00%
1907 £162.07 1.08%
1908 £162.07 0.00%
1909 £163.79 1.06%
1910 £165.52 1.05%
1911 £165.52 0.00%
1912 £170.69 3.13%
1913 £168.97 -1.01%
1914 £168.97 0.00%
1915 £189.66 12.24%
1916 £224.14 18.18%
1917 £281.03 25.38%
1918 £343.10 22.09%
1919 £377.59 10.05%
1920 £436.21 15.53%
1921 £398.28 -8.70%
1922 £343.10 -13.85%
1923 £322.41 -6.03%
1924 £320.69 -0.53%
1925 £320.69 0.00%
1926 £318.97 -0.54%
1927 £310.34 -2.70%
1928 £310.34 0.00%
1929 £306.90 -1.11%
1930 £298.28 -2.81%
1931 £286.21 -4.05%
1932 £279.31 -2.41%
1933 £272.41 -2.47%
1934 £272.41 0.00%
1935 £274.14 0.63%
1936 £275.86 0.63%
1937 £286.21 3.75%
1938 £289.66 1.20%
1939 £298.28 2.98%
1940 £348.28 16.76%
1941 £386.21 10.89%
1942 £413.79 7.14%
1943 £427.59 3.33%
1944 £439.66 2.82%
1945 £451.72 2.75%
1946 £465.52 3.05%
1947 £498.28 7.04%
1948 £536.21 7.61%
1949 £551.72 2.89%
1950 £568.97 3.13%
1951 £620.69 9.09%
1952 £677.59 9.17%
1953 £698.28 3.05%
1954 £712.07 1.98%
1955 £743.10 4.36%
1956 £781.03 5.10%
1957 £808.62 3.53%
1958 £834.48 3.20%
1959 £837.93 0.41%
1960 £846.55 1.03%
1961 £875.86 3.46%
1962 £913.79 4.33%
1963 £931.03 1.89%
1964 £962.07 3.33%
1965 £1,006.90 4.66%
1966 £1,046.55 3.94%
1967 £1,074.14 2.64%
1968 £1,124.14 4.65%
1969 £1,184.48 5.37%
1970 £1,260.34 6.40%
1971 £1,379.31 9.44%
1972 £1,477.59 7.13%
1973 £1,612.07 9.10%
1974 £1,870.69 16.04%
1975 £2,324.14 24.24%
1976 £2,708.62 16.54%
1977 £3,137.93 15.85%
1978 £3,398.28 8.30%
1979 £3,853.45 13.39%
1980 £4,546.55 17.99%
1981 £5,086.21 11.87%
1982 £5,524.14 8.61%
1983 £5,777.59 4.59%
1984 £6,065.52 4.98%
1985 £6,434.48 6.08%
1986 £6,653.45 3.40%
1987 £6,931.03 4.17%
1988 £7,270.69 4.90%
1989 £7,836.21 7.78%
1990 £8,577.59 9.46%
1991 £9,081.03 5.87%
1992 £9,420.69 3.74%
1993 £9,570.69 1.59%
1994 £9,801.72 2.41%
1995 £10,141.38 3.47%
1996 £10,386.21 2.41%
1997 £10,712.07 3.14%
1998 £11,079.31 3.43%
1999 £11,250.00 1.54%
2000 £11,582.76 2.96%
2001 £11,787.93 1.77%
2002 £11,984.48 1.67%
2003 £12,331.03 2.89%
2004 £12,698.28 2.98%
2005 £13,056.90 2.82%
2006 £13,474.14 3.20%
2007 £14,051.72 4.29%
2008 £14,612.07 3.99%
2009 £14,534.48 -0.53%
2010 £15,205.17 4.61%
2011 £15,996.55 5.20%
2012 £16,510.34 3.21%
2013 £17,012.07 3.04%
2014 £17,413.79 2.36%
2015 £17,586.21 0.99%
2016 £17,891.38 1.74%
2017 £18,532.76 3.58%
2018 £18,992.99 2.48%
2019 £19,334.86 1.80%
2020 £19,624.89 1.50%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.
Click to show 226 more rows

This conversion table shows various other 1759 amounts in 1991 pounds, based on the 8,981.03% change in prices:

Conversion Table: Value of a pound in 1991
Initial value Equivalent value
£1 pound in 1759 £90.81 pounds in 1991
£5 pounds in 1759 £454.05 pounds in 1991
£10 pounds in 1759 £908.10 pounds in 1991
£50 pounds in 1759 £4,540.52 pounds in 1991
£100 pounds in 1759 £9,081.03 pounds in 1991
£500 pounds in 1759 £45,405.17 pounds in 1991
£1,000 pounds in 1759 £90,810.34 pounds in 1991
£5,000 pounds in 1759 £454,051.72 pounds in 1991
£10,000 pounds in 1759 £908,103.45 pounds in 1991
£50,000 pounds in 1759 £4,540,517.24 pounds in 1991
£100,000 pounds in 1759 £9,081,034.48 pounds in 1991
£500,000 pounds in 1759 £45,405,172.41 pounds in 1991
£1,000,000 pounds in 1759 £90,810,344.83 pounds in 1991

## How to Calculate Inflation Rate for £100, 1759 to 1991

Our calculations use the following inflation rate formula to calculate the change in value between 1759 and 1991:

CPI in 1991 CPI in 1759
×
1759 GBP value
=
1991 GBP value

Then plug in historical CPI values. The U.K. CPI was 5.8 in the year 1759 and 526.7 in 1991:

526.75.8
×
£100
=
£9,081.03

£100 in 1759 has the same "purchasing power" or "buying power" as £9,081.03 in 1991.

To get the total inflation rate for the 232 years between 1759 and 1991, we use the following formula:

CPI in 1991 - CPI in 1759CPI in 1759
×
100
=
Cumulative inflation rate (232 years)

Plugging in the values to this equation, we get:

526.7 - 5.85.8
×
100
=
8,981%

## 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: “1759 pounds in 1991 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 3 Jun. 2020, https://www.officialdata.org/1759-GBP-in-1991.

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.

 Cumulative price change 8,981.03% Average inflation rate 1.96% Converted amount (£100 base) £9,081.03 Price difference (£100 base) £8,981.03 CPI in 1759 5.800 CPI in 1991 526.700 Inflation in 1759 -7.94% Inflation in 1991 5.87%