£

Value of 1975 British Pounds today

£100 in 1975
£858.13 in 2024

The inflation rate in the United Kingdom between 1975 and today has been 758.13%, which translates into a total increase of £758.13. This means that 100 pounds in 1975 are equivalent to 858.13 pounds in 2024. In other words, the purchasing power of £100 in 1975 equals £858.13 today. The average annual inflation rate between these periods has been 4.48%.

Inflation timeline in the United Kingdom (1975 - 2024)

The following chart depicts the equivalence of £100 due to compound inflation and CPI changes. All values are equivalent in terms of purchasing power, which means that for each year the same goods or services could be bought with the indicated amount of money.

All calculations are performed in the local currency (GBP) and using 6 decimal digits. Results show only up to 2 decimal digits to favour readability. Inflation data is provided by governments and international institutions on a monthly basis. Today's values were extrapolated from the latest 12-month rolling average official data.

The following table contains relevant indicators:

Indicator Value
Cumulative inflation 1975-2023 728.88%
Cumulative inflation 1975-today 758.13%
Avg. Annual inflation 1975-2023 4.5%
CPI 1975 15.51
CPI 2023 128.6
CPI 2024-05 (latest official data) 132.7
CPI today 133.14

How to calculate today's value of money after inflation?

There are several ways to calculate the time value of money. Depending on the data available, results can be obtained by using the Consumer Price Index (CPI) formula or the compound interest formula.

Using the CPI formula

When we have both the start and end years, we can use the following formula:

Valuet =Value0 ×
CPIt/CPI0

To obtain the values equivalent in buying power between 1975 and 2023, use the corresponding CPI values:

Value2023
=Value1975 ×
CPI2023/CPI1975
=£ 100 ×
128.6/15.51
£828.88

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 133.14:

Valuetoday
=Value1975 ×
CPItoday/CPI1975
=£ 100 ×
133.14/15.51
£858.13

Alternative: Using the compound interest formula

Given that money changes with time as a result of an inflation rate that acts as compound interest, we can use the following formula: FV = PV × (1 + i)n, where:

  • FV: Future Value
  • PV: Present Value
  • i: Interest rate (inflation)
  • n: Number of times the interest is compounded (i.e. # of years)

In this case, the future value represents the final amount obtained after applying the inflation rate to our initial value. In other words, it indicates how much are £100 worth today. There are 48 years between 1975 and 2023 and the average inflation rate was 4.5046%. Therefore, we can resolve the formula like this:

Value2023
=PV × (1 + i)n
=£100 × (1 + 0.045046)48
£828.88

UK inflation - Conversion table

Initial Value Equivalent value
£1 pound in 1975 £8.29 pounds in 2023
£5 pounds in 1975 £41.44 pounds in 2023
£10 pounds in 1975 £82.89 pounds in 2023
£50 pounds in 1975 £414.44 pounds in 2023
£100 pounds in 1975 £828.88 pounds in 2023
£500 pounds in 1975 £4,144.4 pounds in 2023
£1,000 pounds in 1975 £8,288.79 pounds in 2023
£5,000 pounds in 1975 £41,443.95 pounds in 2023
£10,000 pounds in 1975 £82,887.9 pounds in 2023
£50,000 pounds in 1975 £414,439.51 pounds in 2023
£100,000 pounds in 1975 £828,879.02 pounds in 2023
£500,000 pounds in 1975 £4,144,395.11 pounds in 2023
£1,000,000 pounds in 1975 £8,288,790.22 pounds in 2023
Cumulative inflation From 1975 758.13%
Avg. annual inflation From 1975 4.48%
CPI 1975 15.51
CPI today 133.14

Value of Pound over time (by year)

Period Value
1975 100
1976 116.56
1977 135.02
1978 146.18
1979 165.8
1980 195.59
1981 218.82
1982 237.63
1983 248.58
1984 260.92
1985 276.76
1986 286.24
1987 298.12
1988 310.67
1989 328.72
1990 355.14
1991 381.57
1992 398.97
1993 409.28
1994 418.31
1995 429.26
1996 441.51
1997 451.18
1998 459.56
1999 467.94
2000 473.09
2001 480.83
2002 487.92
2003 494.36
2004 501.45
2005 511.77
2006 524.66
2007 536.9
2008 555.59
2009 566.55
2010 580.73
2011 603.29
2012 618.76
2013 632.94
2014 641.96
2015 644.54
2016 650.99
2017 667.74
2018 683.21
2019 694.81
2020 701.9
2021 719.31
2022 776.67
2023 828.88
2024-05 855.31
Today 858.13

All available years

Today's value of british pounds by year:

1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |

Other currencies: