Value of 1973 British Pounds today

£100 in 1973

£1,049.62 in 2019

The inflation rate in United Kingdom between 1973 and today has been 949.62%, which translates into a total increase of £949.62. This means that 100 pounds in 1973 are equivalent to 1,049.62 pounds in 2019. In other words, the purchasing power of £100 in 1973 equals £1,049.62 today. The average annual inflation rate has been 5.13%.

Inflation timeline in United Kingdom (1973-2019)

The following chart depicts the equivalence of £100 throughout the years due to 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 obtained by estimating figures from recent trends.

The following table contains relevant indicators:

Indicator Value
Total Inflation (1973-2019) 948.75%
Total Inflation* 949.62%
Annual inflation avg. (1973-2019) 5.24%
Annual inflation avg.* 5.13%
CPI 1973 10.21
CPI 2019 107.1
CPI today* 107.19
£1 in 1973 £10.49 in 2019

* Values extrapolated from the last official data to obtain today's values.

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 compound interest formula or the Consumer Price Index (CPI) formula.

Using the compound interest formula

Given that money changes in time as a result of an inflation rate that acts as a compound interest, the following formula can be used: 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 46 years between 1973 and 2019 and the average inflation rate has been 5.1294%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = £100 * (1 + 0.05)46 = £1,048.75

Using the CPI formula

When the CPI for both start and end years is known, the following formula can be used:

Final value = Initial value *
CPI final/CPI initial

In this case, the CPI in 1973 was 10.21 and the CPI today is 107.19. Therefore,

Final value = Initial value *
CPI final/CPI initial
= £100 *
107.1/10.21
= £1,048.75

United Kingdom inflation - Conversion table

Initial Value Equivalent value
£1 pound in 1973 £10.5 pounds today
£5 pounds in 1973 £52.48 pounds today
£10 pounds in 1973 £104.96 pounds today
£50 pounds in 1973 £524.81 pounds today
£100 pounds in 1973 £1,049.62 pounds today
£500 pounds in 1973 £5,248.12 pounds today
£1,000 pounds in 1973 £10,496.25 pounds today
£5,000 pounds in 1973 £52,481.24 pounds today
£10,000 pounds in 1973 £104,962.47 pounds today
£50,000 pounds in 1973 £524,812.36 pounds today
£100,000 pounds in 1973 £1,049,624.71 pounds today
£500,000 pounds in 1973 £5,248,123.56 pounds today
£1,000,000 pounds in 1973 £10,496,247.12 pounds today

Value of Pound in time (by year)

Period Value
1973 100
1974 110.58
1975 131.74
1976 164.53
1977 189.32
1978 212.31
1979 230.11
1980 269.78
1981 310.58
1982 347.99
1983 366.81
1984 386.3
1985 404
1986 426.8
1987 442.81
1988 459.26
1989 482.76
1990 511.16
1991 558.16
1992 594.39
1993 613
1994 626.7
1995 641.39
1996 660.98
1997 679.58
1998 692.31
1999 705.04
2000 715.81
2001 724.63
2002 734.42
2003 747.15
2004 756.94
2005 769.67
2006 786.32
2007 808.84
2008 827.45
2009 852.91
2010 870.53
2011 897.95
2012 930.26
2013 952.79
2014 971.39
2015 978.25
2016 983.14
2017 1,000.77
2018 1,028.19
2019 1,048.75
Today 1,049.62