# £100 in 1772 → £7,117.57 in 1991

## UK Inflation Calculator

£

### UK Inflation Rate, £100 in 1772 to 1991

According to the Office for National Statistics composite price index, prices in 1991 are 7,017.57% higher than average prices throughout 1772. The pound experienced an average inflation rate of 1.97% per year during this period, meaning the real value of a dollar decreased.

In other words, £100 in 1772 is equivalent in purchasing power to about £7,117.57 in 1991, a difference of £7,017.57 over 219 years.

The 1772 inflation rate was 10.45%. The inflation rate in 1991 was 5.87%. The 1991 inflation rate is higher compared to the average inflation rate of 2.74% per year between 1991 and 2019.

 Cumulative price change 7,017.57% Average inflation rate 1.97% Converted amount (£100 base) £7,117.57 Price difference (£100 base) £7,017.57 CPI in 1772 7.400 CPI in 1991 526.700 Inflation in 1772 10.45% Inflation in 1991 5.87%

### Buying power of £100 in 1772

This chart shows calculation of buying power equivalence, often referred to as "the value of a pound" over time for £100 in 1772 (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
1772 £100.00 10.45%
1773 £100.00 0.00%
1774 £101.35 1.35%
1775 £94.59 -6.67%
1776 £93.24 -1.43%
1777 £93.24 0.00%
1778 £95.95 2.90%
1779 £87.84 -8.45%
1780 £85.14 -3.08%
1781 £89.19 4.76%
1782 £90.54 1.52%
1783 £101.35 11.94%
1784 £102.70 1.33%
1785 £97.30 -5.26%
1786 £97.30 0.00%
1787 £97.30 0.00%
1788 £101.35 4.17%
1789 £100.00 -1.33%
1790 £101.35 1.35%
1791 £101.35 0.00%
1792 £102.70 1.33%
1793 £105.41 2.63%
1794 £114.86 8.97%
1795 £127.03 10.59%
1796 £135.14 6.38%
1797 £121.62 -10.00%
1798 £118.92 -2.22%
1799 £133.78 12.50%
1800 £182.43 36.36%
1801 £204.05 11.85%
1802 £156.76 -23.18%
1803 £148.65 -5.17%
1804 £152.70 2.73%
1805 £177.03 15.93%
1806 £170.27 -3.82%
1807 £166.22 -2.38%
1808 £172.97 4.07%
1809 £189.19 9.37%
1810 £194.59 2.86%
1811 £189.19 -2.78%
1812 £214.86 13.57%
1813 £220.27 2.52%
1814 £191.89 -12.88%
1815 £171.62 -10.56%
1816 £156.76 -8.66%
1817 £178.38 13.79%
1818 £178.38 0.00%
1819 £174.32 -2.27%
1820 £158.11 -9.30%
1821 £139.19 -11.97%
1822 £120.27 -13.59%
1823 £128.38 6.74%
1824 £139.19 8.42%
1825 £163.51 17.48%
1826 £154.05 -5.79%
1827 £144.59 -6.14%
1828 £140.54 -2.80%
1829 £139.19 -0.96%
1830 £133.78 -3.88%
1831 £147.30 10.10%
1832 £136.49 -7.34%
1833 £128.38 -5.94%
1834 £117.57 -8.42%
1835 £120.27 2.30%
1836 £133.78 11.24%
1837 £136.49 2.02%
1838 £137.84 0.99%
1839 £147.30 6.86%
1840 £150.00 1.83%
1841 £147.30 -1.80%
1842 £135.14 -8.26%
1843 £120.27 -11.00%
1844 £120.27 0.00%
1845 £125.68 4.49%
1846 £131.08 4.30%
1847 £147.30 12.37%
1848 £128.38 -12.84%
1849 £120.27 -6.32%
1850 £113.51 -5.62%
1851 £109.46 -3.57%
1852 £109.46 0.00%
1853 £120.27 9.88%
1854 £137.84 14.61%
1855 £141.89 2.94%
1856 £141.89 0.00%
1857 £135.14 -4.76%
1858 £122.97 -9.00%
1859 £121.62 -1.10%
1860 £125.68 3.33%
1861 £128.38 2.15%
1862 £125.68 -2.11%
1863 £121.62 -3.23%
1864 £120.27 -1.11%
1865 £121.62 1.12%
1866 £128.38 5.56%
1867 £136.49 6.32%
1868 £135.14 -0.99%
1869 £128.38 -5.00%
1870 £128.38 0.00%
1871 £129.73 1.05%
1872 £135.14 4.17%
1873 £140.54 4.00%
1874 £135.14 -3.85%
1875 £132.43 -2.00%
1876 £132.43 0.00%
1877 £131.08 -1.02%
1878 £128.38 -2.06%
1879 £122.97 -4.21%
1880 £127.03 3.30%
1881 £125.68 -1.06%
1882 £127.03 1.08%
1883 £125.68 -1.06%
1884 £122.97 -2.15%
1885 £118.92 -3.30%
1886 £117.57 -1.14%
1887 £116.22 -1.15%
1888 £117.57 1.16%
1889 £118.92 1.15%
1890 £118.92 0.00%
1891 £120.27 1.14%
1892 £120.27 0.00%
1893 £118.92 -1.12%
1894 £117.57 -1.14%
1895 £116.22 -1.15%
1896 £114.86 -1.16%
1897 £117.57 2.35%
1898 £117.57 0.00%
1899 £118.92 1.15%
1900 £124.32 4.55%
1901 £124.32 0.00%
1902 £124.32 0.00%
1903 £125.68 1.09%
1904 £125.68 0.00%
1905 £125.68 0.00%
1906 £125.68 0.00%
1907 £127.03 1.08%
1908 £127.03 0.00%
1909 £128.38 1.06%
1910 £129.73 1.05%
1911 £129.73 0.00%
1912 £133.78 3.13%
1913 £132.43 -1.01%
1914 £132.43 0.00%
1915 £148.65 12.24%
1916 £175.68 18.18%
1917 £220.27 25.38%
1918 £268.92 22.09%
1919 £295.95 10.05%
1920 £341.89 15.53%
1921 £312.16 -8.70%
1922 £268.92 -13.85%
1923 £252.70 -6.03%
1924 £251.35 -0.53%
1925 £251.35 0.00%
1926 £250.00 -0.54%
1927 £243.24 -2.70%
1928 £243.24 0.00%
1929 £240.54 -1.11%
1930 £233.78 -2.81%
1931 £224.32 -4.05%
1932 £218.92 -2.41%
1933 £213.51 -2.47%
1934 £213.51 0.00%
1935 £214.86 0.63%
1936 £216.22 0.63%
1937 £224.32 3.75%
1938 £227.03 1.20%
1939 £233.78 2.98%
1940 £272.97 16.76%
1941 £302.70 10.89%
1942 £324.32 7.14%
1943 £335.14 3.33%
1944 £344.59 2.82%
1945 £354.05 2.75%
1946 £364.86 3.05%
1947 £390.54 7.04%
1948 £420.27 7.61%
1949 £432.43 2.89%
1950 £445.95 3.13%
1951 £486.49 9.09%
1952 £531.08 9.17%
1953 £547.30 3.05%
1954 £558.11 1.98%
1955 £582.43 4.36%
1956 £612.16 5.10%
1957 £633.78 3.53%
1958 £654.05 3.20%
1959 £656.76 0.41%
1960 £663.51 1.03%
1961 £686.49 3.46%
1962 £716.22 4.33%
1963 £729.73 1.89%
1964 £754.05 3.33%
1965 £789.19 4.66%
1966 £820.27 3.94%
1967 £841.89 2.64%
1968 £881.08 4.65%
1969 £928.38 5.37%
1970 £987.84 6.40%
1971 £1,081.08 9.44%
1972 £1,158.11 7.13%
1973 £1,263.51 9.10%
1974 £1,466.22 16.04%
1975 £1,821.62 24.24%
1976 £2,122.97 16.54%
1977 £2,459.46 15.85%
1978 £2,663.51 8.30%
1979 £3,020.27 13.39%
1980 £3,563.51 17.99%
1981 £3,986.49 11.87%
1982 £4,329.73 8.61%
1983 £4,528.38 4.59%
1984 £4,754.05 4.98%
1985 £5,043.24 6.08%
1986 £5,214.86 3.40%
1987 £5,432.43 4.17%
1988 £5,698.65 4.90%
1989 £6,141.89 7.78%
1990 £6,722.97 9.46%
1991 £7,117.57 5.87%
1992 £7,383.78 3.74%
1993 £7,501.35 1.59%
1994 £7,682.43 2.41%
1995 £7,948.65 3.47%
1996 £8,140.54 2.41%
1997 £8,395.95 3.14%
1998 £8,683.78 3.43%
1999 £8,817.57 1.54%
2000 £9,078.38 2.96%
2001 £9,239.19 1.77%
2002 £9,393.24 1.67%
2003 £9,664.86 2.89%
2004 £9,952.70 2.98%
2005 £10,233.78 2.82%
2006 £10,560.81 3.20%
2007 £11,013.51 4.29%
2008 £11,452.70 3.99%
2009 £11,391.89 -0.53%
2010 £11,917.57 4.61%
2011 £12,537.84 5.20%
2012 £12,940.54 3.21%
2013 £13,333.78 3.04%
2014 £13,648.65 2.36%
2015 £13,783.78 0.99%
2016 £14,022.97 1.74%
2017 £14,525.68 3.58%
2018 £14,886.40 2.48%
2019 £15,154.35 1.80%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.

### How to Calculate Inflation Rate for £100, 1772 to 1991

This inflation calculator uses the following inflation rate formula:

CPI in 1991CPI in 1772
×
1772 GBP value
=
1991 GBP value

Then plug in historical CPI values. The UK CPI was 7.4 in the year 1772 and 526.7 in 1991:

526.77.4
×
£100
=
£7,117.57

£100 in 1772 has the same "purchasing power" or "buying power" as £7,117.57 in 1991.

To get the total inflation rate for the 219 years between 1772 and 1991, we use the following formula:

CPI in 1991 - CPI in 1772CPI in 1772
×
100
=
Cumulative inflation rate (219 years)

Plugging in the values to this equation, we get:

526.7 - 7.47.4
×
100
=
7,018%

### 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: “1772 pounds in 1991 | UK Inflation Calculator.” U.S. Official Inflation Data, Alioth Finance, 20 May. 2019, https://www.officialdata.org/1772-GBP-in-1991.