£100 in 1865 is worth £11,943.33 in 2017

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Value of £100 from 1865 to 2017

£100 in 1865 is equivalent in purchasing power to about £11,943.33 in 2017, an increase of £11,843.33 over 152 years. The pound had an average inflation rate of 3.20% per year between 1865 and 2017, producing a cumulative price increase of 11,843.33%.

This means that prices in 2017 are 119.43 times higher than average prices since 1865, according to the Office for National Statistics composite price index.

The 1865 inflation rate was 1.12%. The inflation rate in 2017 was 3.58%. The 2017 inflation rate is higher compared to the average inflation rate of 1.92% per year between 2017 and 2021.


Inflation from 1865 to 2017
Cumulative price change 11,843.33%
Average inflation rate 3.20%
Converted amount (£100 base) £11,943.33
Price difference (£100 base) £11,843.33
CPI in 1865 9.000
CPI in 2017 1,074.900
Inflation in 1865 1.12%
Inflation in 2017 3.58%
£100 in 1865 £11,943.33 in 2017

GBP Inflation since 1750
Annual Rate, the Office for National Statistics CPI
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Buying power of £100 in 1865

This chart shows a calculation of buying power equivalence for £100 in 1865 (price index tracking began in 1750).

For example, if you started with £100, you would need to end with £11,943.33 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When £100 is equivalent to £11,943.33 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 1865 dollars, the chart below shows how £100 is worth less over 152 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: 1865-2017
Year Pound Value Inflation Rate
1865 £100.00 1.12%
1866 £105.56 5.56%
1867 £112.22 6.32%
1868 £111.11 -0.99%
1869 £105.56 -5.00%
1870 £105.56 0.00%
1871 £106.67 1.05%
1872 £111.11 4.17%
1873 £115.56 4.00%
1874 £111.11 -3.85%
1875 £108.89 -2.00%
1876 £108.89 0.00%
1877 £107.78 -1.02%
1878 £105.56 -2.06%
1879 £101.11 -4.21%
1880 £104.44 3.30%
1881 £103.33 -1.06%
1882 £104.44 1.08%
1883 £103.33 -1.06%
1884 £101.11 -2.15%
1885 £97.78 -3.30%
1886 £96.67 -1.14%
1887 £95.56 -1.15%
1888 £96.67 1.16%
1889 £97.78 1.15%
1890 £97.78 0.00%
1891 £98.89 1.14%
1892 £98.89 0.00%
1893 £97.78 -1.12%
1894 £96.67 -1.14%
1895 £95.56 -1.15%
1896 £94.44 -1.16%
1897 £96.67 2.35%
1898 £96.67 0.00%
1899 £97.78 1.15%
1900 £102.22 4.55%
1901 £102.22 0.00%
1902 £102.22 0.00%
1903 £103.33 1.09%
1904 £103.33 0.00%
1905 £103.33 0.00%
1906 £103.33 0.00%
1907 £104.44 1.08%
1908 £104.44 0.00%
1909 £105.56 1.06%
1910 £106.67 1.05%
1911 £106.67 0.00%
1912 £110.00 3.13%
1913 £108.89 -1.01%
1914 £108.89 0.00%
1915 £122.22 12.24%
1916 £144.44 18.18%
1917 £181.11 25.38%
1918 £221.11 22.09%
1919 £243.33 10.05%
1920 £281.11 15.53%
1921 £256.67 -8.70%
1922 £221.11 -13.85%
1923 £207.78 -6.03%
1924 £206.67 -0.53%
1925 £206.67 0.00%
1926 £205.56 -0.54%
1927 £200.00 -2.70%
1928 £200.00 0.00%
1929 £197.78 -1.11%
1930 £192.22 -2.81%
1931 £184.44 -4.05%
1932 £180.00 -2.41%
1933 £175.56 -2.47%
1934 £175.56 0.00%
1935 £176.67 0.63%
1936 £177.78 0.63%
1937 £184.44 3.75%
1938 £186.67 1.20%
1939 £192.22 2.98%
1940 £224.44 16.76%
1941 £248.89 10.89%
1942 £266.67 7.14%
1943 £275.56 3.33%
1944 £283.33 2.82%
1945 £291.11 2.75%
1946 £300.00 3.05%
1947 £321.11 7.04%
1948 £345.56 7.61%
1949 £355.56 2.89%
1950 £366.67 3.13%
1951 £400.00 9.09%
1952 £436.67 9.17%
1953 £450.00 3.05%
1954 £458.89 1.98%
1955 £478.89 4.36%
1956 £503.33 5.10%
1957 £521.11 3.53%
1958 £537.78 3.20%
1959 £540.00 0.41%
1960 £545.56 1.03%
1961 £564.44 3.46%
1962 £588.89 4.33%
1963 £600.00 1.89%
1964 £620.00 3.33%
1965 £648.89 4.66%
1966 £674.44 3.94%
1967 £692.22 2.64%
1968 £724.44 4.65%
1969 £763.33 5.37%
1970 £812.22 6.40%
1971 £888.89 9.44%
1972 £952.22 7.13%
1973 £1,038.89 9.10%
1974 £1,205.56 16.04%
1975 £1,497.78 24.24%
1976 £1,745.56 16.54%
1977 £2,022.22 15.85%
1978 £2,190.00 8.30%
1979 £2,483.33 13.39%
1980 £2,930.00 17.99%
1981 £3,277.78 11.87%
1982 £3,560.00 8.61%
1983 £3,723.33 4.59%
1984 £3,908.89 4.98%
1985 £4,146.67 6.08%
1986 £4,287.78 3.40%
1987 £4,466.67 4.17%
1988 £4,685.56 4.90%
1989 £5,050.00 7.78%
1990 £5,527.78 9.46%
1991 £5,852.22 5.87%
1992 £6,071.11 3.74%
1993 £6,167.78 1.59%
1994 £6,316.67 2.41%
1995 £6,535.56 3.47%
1996 £6,693.33 2.41%
1997 £6,903.33 3.14%
1998 £7,140.00 3.43%
1999 £7,250.00 1.54%
2000 £7,464.44 2.96%
2001 £7,596.67 1.77%
2002 £7,723.33 1.67%
2003 £7,946.67 2.89%
2004 £8,183.33 2.98%
2005 £8,414.44 2.82%
2006 £8,683.33 3.20%
2007 £9,055.56 4.29%
2008 £9,416.67 3.99%
2009 £9,366.67 -0.53%
2010 £9,798.89 4.61%
2011 £10,308.89 5.20%
2012 £10,640.00 3.21%
2013 £10,963.33 3.04%
2014 £11,222.22 2.36%
2015 £11,333.33 0.99%
2016 £11,530.00 1.74%
2017 £11,943.33 3.58%
2018 £12,265.80 2.70%
2019 £12,572.45 2.50%
2020 £12,798.75 1.80%
2021 £12,888.34 0.70%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.
Click to show 146 more rows

This conversion table shows various other 1865 amounts in 2017 pounds, based on the 11,843.33% change in prices:

Conversion: 1865 pounds in 2017
Initial value Equivalent value
£1 pound in 1865 £119.43 pounds in 2017
£5 pounds in 1865 £597.17 pounds in 2017
£10 pounds in 1865 £1,194.33 pounds in 2017
£50 pounds in 1865 £5,971.67 pounds in 2017
£100 pounds in 1865 £11,943.33 pounds in 2017
£500 pounds in 1865 £59,716.67 pounds in 2017
£1,000 pounds in 1865 £119,433.33 pounds in 2017
£5,000 pounds in 1865 £597,166.67 pounds in 2017
£10,000 pounds in 1865 £1,194,333.33 pounds in 2017
£50,000 pounds in 1865 £5,971,666.67 pounds in 2017
£100,000 pounds in 1865 £11,943,333.33 pounds in 2017
£500,000 pounds in 1865 £59,716,666.67 pounds in 2017
£1,000,000 pounds in 1865 £119,433,333.33 pounds in 2017

How to Calculate Inflation Rate for £100, 1865 to 2017

Our calculations use the following inflation rate formula to calculate the change in value between 1865 and 2017:

CPI in 2017 CPI in 1865
×
1865 GBP value
=
2017 GBP value

Then plug in historical CPI values. The U.K. CPI was 9 in the year 1865 and 1074.9 in 2017:

1074.99
×
£100
=
£11,943.33

£100 in 1865 has the same "purchasing power" or "buying power" as £11,943.33 in 2017.

To get the total inflation rate for the 152 years between 1865 and 2017, we use the following formula:

CPI in 2017 - CPI in 1865CPI in 1865
×
100
=
Cumulative inflation rate (152 years)

Plugging in the values to this equation, we get:

1074.9 - 99
×
100
=
11,843%

News headlines from 1865

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

  • America abolishes slavery after Congress passes the 13th Amendment.
  • John Wilkes Booth assassinates President Abraham Lincoln at Ford's Theater, in Washington.
  • The New York Stock Exchange opens its first permanent headquarters at 10-12 Broad Street.
  • Columbia, South Carolina burns during the American Civil War.

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: “£100 in 1865 → 2017 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 19 Jun. 2021, https://www.officialdata.org/uk/inflation/1865?amount=100&endYear=2017.

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


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 1865 to 2017
Cumulative price change 11,843.33%
Average inflation rate 3.20%
Converted amount (£100 base) £11,943.33
Price difference (£100 base) £11,843.33
CPI in 1865 9.000
CPI in 2017 1,074.900
Inflation in 1865 1.12%
Inflation in 2017 3.58%
£100 in 1865 £11,943.33 in 2017