£100 in 1758 is worth £8,360.32 in 1991

Value of £100 from 1758 to 1991

£100 in 1758 is equivalent in purchasing power to about £8,360.32 in 1991, an increase of £8,260.32 over 233 years. The pound had an average inflation rate of 1.92% per year between 1758 and 1991, producing a cumulative price increase of 8,260.32%.

This means that prices in 1991 are 83.60 times as high as average prices since 1758, according to the Office for National Statistics composite price index.

The inflation rate in 1758 was 0.00%. The inflation rate in 1991 was 5.87%. The 1991 inflation rate is higher compared to the average inflation rate of 3.04% per year between 1991 and 2024.


Inflation from 1758 to 1991
Cumulative price change8,260.32%
Average inflation rate1.92%
Converted amount
£100 base
£8,360.32
Price difference
£100 base
£8,260.32
CPI in 17586.300
CPI in 1991526.700
Inflation in 17580.00%
Inflation in 19915.87%
£100 in 1758£8,360.32 in 1991

GBP inflation since 1758
Annual Rate, the Office for National Statistics CPI
Download

Buying power of £100 in 1758

This chart shows a calculation of buying power equivalence for £100 in 1758 (price index tracking began in 1750).

For example, if you started with £100, you would need to end with £8,360.32 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When £100 is equivalent to £8,360.32 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 1758 dollars, the chart below shows how £100 is worth less over 233 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: 1758-1991
YearPound ValueInflation Rate
1758£100.00-
1759£92.06-7.94%
1760£88.89-3.45%
1761£84.13-5.36%
1762£87.303.77%
1763£90.483.64%
1764£98.418.77%
1765£101.593.23%
1766£103.171.56%
1767£107.944.62%
1768£106.35-1.47%
1769£98.41-7.46%
1770£98.410.00%
1771£106.358.06%
1772£117.4610.45%
1773£117.460.00%
1774£119.051.35%
1775£111.11-6.67%
1776£109.52-1.43%
1777£109.520.00%
1778£112.702.90%
1779£103.17-8.45%
1780£100.00-3.08%
1781£104.764.76%
1782£106.351.52%
1783£119.0511.94%
1784£120.631.33%
1785£114.29-5.26%
1786£114.290.00%
1787£114.290.00%
1788£119.054.17%
1789£117.46-1.33%
1790£119.051.35%
1791£119.050.00%
1792£120.631.33%
1793£123.812.63%
1794£134.928.97%
1795£149.2110.59%
1796£158.736.38%
1797£142.86-10.00%
1798£139.68-2.22%
1799£157.1412.50%
1800£214.2936.36%
1801£239.6811.85%
1802£184.13-23.18%
1803£174.60-5.17%
1804£179.372.73%
1805£207.9415.93%
1806£200.00-3.82%
1807£195.24-2.38%
1808£203.174.07%
1809£222.229.37%
1810£228.572.86%
1811£222.22-2.78%
1812£252.3813.57%
1813£258.732.52%
1814£225.40-12.88%
1815£201.59-10.56%
1816£184.13-8.66%
1817£209.5213.79%
1818£209.520.00%
1819£204.76-2.27%
1820£185.71-9.30%
1821£163.49-11.97%
1822£141.27-13.59%
1823£150.796.74%
1824£163.498.42%
1825£192.0617.48%
1826£180.95-5.79%
1827£169.84-6.14%
1828£165.08-2.80%
1829£163.49-0.96%
1830£157.14-3.88%
1831£173.0210.10%
1832£160.32-7.34%
1833£150.79-5.94%
1834£138.10-8.42%
1835£141.272.30%
1836£157.1411.24%
1837£160.322.02%
1838£161.900.99%
1839£173.026.86%
1840£176.191.83%
1841£173.02-1.80%
1842£158.73-8.26%
1843£141.27-11.00%
1844£141.270.00%
1845£147.624.49%
1846£153.974.30%
1847£173.0212.37%
1848£150.79-12.84%
1849£141.27-6.32%
1850£133.33-5.62%
1851£128.57-3.57%
1852£128.570.00%
1853£141.279.88%
1854£161.9014.61%
1855£166.672.94%
1856£166.670.00%
1857£158.73-4.76%
1858£144.44-9.00%
1859£142.86-1.10%
1860£147.623.33%
1861£150.792.15%
1862£147.62-2.11%
1863£142.86-3.23%
1864£141.27-1.11%
1865£142.861.12%
1866£150.795.56%
1867£160.326.32%
1868£158.73-0.99%
1869£150.79-5.00%
1870£150.790.00%
1871£152.381.05%
1872£158.734.17%
1873£165.084.00%
1874£158.73-3.85%
1875£155.56-2.00%
1876£155.560.00%
1877£153.97-1.02%
1878£150.79-2.06%
1879£144.44-4.21%
1880£149.213.30%
1881£147.62-1.06%
1882£149.211.08%
1883£147.62-1.06%
1884£144.44-2.15%
1885£139.68-3.30%
1886£138.10-1.14%
1887£136.51-1.15%
1888£138.101.16%
1889£139.681.15%
1890£139.680.00%
1891£141.271.14%
1892£141.270.00%
1893£139.68-1.12%
1894£138.10-1.14%
1895£136.51-1.15%
1896£134.92-1.16%
1897£138.102.35%
1898£138.100.00%
1899£139.681.15%
1900£146.034.55%
1901£146.030.00%
1902£146.030.00%
1903£147.621.09%
1904£147.620.00%
1905£147.620.00%
1906£147.620.00%
1907£149.211.08%
1908£149.210.00%
1909£150.791.06%
1910£152.381.05%
1911£152.380.00%
1912£157.143.13%
1913£155.56-1.01%
1914£155.560.00%
1915£174.6012.24%
1916£206.3518.18%
1917£258.7325.38%
1918£315.8722.09%
1919£347.6210.05%
1920£401.5915.53%
1921£366.67-8.70%
1922£315.87-13.85%
1923£296.83-6.03%
1924£295.24-0.53%
1925£295.240.00%
1926£293.65-0.54%
1927£285.71-2.70%
1928£285.710.00%
1929£282.54-1.11%
1930£274.60-2.81%
1931£263.49-4.05%
1932£257.14-2.41%
1933£250.79-2.47%
1934£250.790.00%
1935£252.380.63%
1936£253.970.63%
1937£263.493.75%
1938£266.671.20%
1939£274.602.98%
1940£320.6316.76%
1941£355.5610.89%
1942£380.957.14%
1943£393.653.33%
1944£404.762.82%
1945£415.872.75%
1946£428.573.05%
1947£458.737.04%
1948£493.657.61%
1949£507.942.89%
1950£523.813.13%
1951£571.439.09%
1952£623.819.17%
1953£642.863.05%
1954£655.561.98%
1955£684.134.36%
1956£719.055.10%
1957£744.443.53%
1958£768.253.20%
1959£771.430.41%
1960£779.371.03%
1961£806.353.46%
1962£841.274.33%
1963£857.141.89%
1964£885.713.33%
1965£926.984.66%
1966£963.493.94%
1967£988.892.64%
1968£1,034.924.65%
1969£1,090.485.37%
1970£1,160.326.40%
1971£1,269.849.44%
1972£1,360.327.13%
1973£1,484.139.10%
1974£1,722.2216.04%
1975£2,139.6824.24%
1976£2,493.6516.54%
1977£2,888.8915.85%
1978£3,128.578.30%
1979£3,547.6213.39%
1980£4,185.7117.99%
1981£4,682.5411.87%
1982£5,085.718.61%
1983£5,319.054.59%
1984£5,584.134.98%
1985£5,923.816.08%
1986£6,125.403.40%
1987£6,380.954.17%
1988£6,693.654.90%
1989£7,214.297.78%
1990£7,896.839.46%
1991£8,360.325.87%
1992£8,673.023.74%
1993£8,811.111.59%
1994£9,023.812.41%
1995£9,336.513.47%
1996£9,561.902.41%
1997£9,861.903.14%
1998£10,200.003.43%
1999£10,357.141.54%
2000£10,663.492.96%
2001£10,852.381.77%
2002£11,033.331.67%
2003£11,352.382.89%
2004£11,690.482.98%
2005£12,020.632.82%
2006£12,404.763.20%
2007£12,936.514.29%
2008£13,452.383.99%
2009£13,380.95-0.53%
2010£13,998.414.61%
2011£14,726.985.20%
2012£15,200.003.21%
2013£15,661.903.04%
2014£16,031.752.36%
2015£16,190.480.99%
2016£16,471.431.74%
2017£17,061.903.58%
2018£17,522.582.70%
2019£17,960.642.50%
2020£18,283.931.80%
2021£18,739.512.49%
2022£20,219.937.90%
2023£21,649.887.07%
2024£22,494.233.90%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.
Click to show 227 more rows

This conversion table shows various other 1758 amounts in 1991 pounds, based on the 8,260.32% change in prices:

Conversion: 1758 pounds in 1991
Initial valueEquivalent value
£1 pound in 1758£83.60 pounds in 1991
£5 pounds in 1758£418.02 pounds in 1991
£10 pounds in 1758£836.03 pounds in 1991
£50 pounds in 1758£4,180.16 pounds in 1991
£100 pounds in 1758£8,360.32 pounds in 1991
£500 pounds in 1758£41,801.59 pounds in 1991
£1,000 pounds in 1758£83,603.17 pounds in 1991
£5,000 pounds in 1758£418,015.87 pounds in 1991
£10,000 pounds in 1758£836,031.75 pounds in 1991
£50,000 pounds in 1758£4,180,158.73 pounds in 1991
£100,000 pounds in 1758£8,360,317.46 pounds in 1991
£500,000 pounds in 1758£41,801,587.30 pounds in 1991
£1,000,000 pounds in 1758£83,603,174.60 pounds in 1991

How to calculate inflation rate for £100, 1758 to 1991

Our calculations use the following inflation rate formula to calculate the change in value between 1758 and 1991:

CPI in 1991 CPI in 1758
×
1758 GBP value
=
1991 GBP value

Then plug in historical CPI values. The U.K. CPI was 6.3 in the year 1758 and 526.7 in 1991:

526.76.3
×
£100
=
£8,360.32

£100 in 1758 has the same "purchasing power" or "buying power" as £8,360.32 in 1991.

To get the total inflation rate for the 233 years between 1758 and 1991, we use the following formula:

CPI in 1991 - CPI in 1758CPI in 1758
×
100
=
Cumulative inflation rate (233 years)

Plugging in the values to this equation, we get:

526.7 - 6.36.3
×
100
=
8,260%

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 the current year, which is based on The Bank of England's forecast.

You may use the following MLA citation for this page: “1758 pounds in 1991 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 28 Mar. 2024, https://www.officialdata.org/1758-GBP-in-1991.

Special thanks to QuickChart for their chart image API, which is used for chart downloads.

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 1758 to 1991
Cumulative price change8,260.32%
Average inflation rate1.92%
Converted amount
£100 base
£8,360.32
Price difference
£100 base
£8,260.32
CPI in 17586.300
CPI in 1991526.700
Inflation in 17580.00%
Inflation in 19915.87%
£100 in 1758£8,360.32 in 1991