Value of 1984 British Pounds today

£100 in 1984

£271.86 in 2019

The inflation rate in United Kingdom between 1984 and today has been 171.86%, which translates into a total increase of £171.86. This means that 100 pounds in 1984 are equivalent to 271.86 pounds in 2019. In other words, the purchasing power of £100 in 1984 equals £271.86 today. The average annual inflation rate has been 2.82%.

Inflation timeline in United Kingdom (1984-2019)

The following chart ilustrates the equivalence of £100 throughout the years due to inflation and CPI changes. All values are equivalent in terms of purchashing 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 (1984-2019) 171.48%
Total Inflation* 171.86%
Annual inflation avg. (1984-2019) 2.89%
Annual inflation avg.* 2.82%
CPI 1984 39.45
CPI 2019 107.1
CPI today* 107.25
£1 in 1984 £2.71 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 35 years between 1984 and 2019 and the average inflation rate has been 2.8171%. Therefore, we can resolve the formula like this:

FV = PV (1 + i)n = £100 * (1 + 0.03)35 = £271.48

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 1984 was 39.45 and the CPI today is 107.25. Therefore,

Final value = Initial value *
CPI final/CPI initial
= £100 *
107.1/39.45
= £271.48

United Kingdom inflation - Conversion table

Initial Value Equivalent value
£1 pound in 1984 £2.72 pounds today
£5 pounds in 1984 £13.59 pounds today
£10 pounds in 1984 £27.19 pounds today
£50 pounds in 1984 £135.93 pounds today
£100 pounds in 1984 £271.86 pounds today
£500 pounds in 1984 £1,359.3 pounds today
£1,000 pounds in 1984 £2,718.6 pounds today
£5,000 pounds in 1984 £13,593 pounds today
£10,000 pounds in 1984 £27,185.99 pounds today
£50,000 pounds in 1984 £135,929.97 pounds today
£100,000 pounds in 1984 £271,859.95 pounds today
£500,000 pounds in 1984 £1,359,299.75 pounds today
£1,000,000 pounds in 1984 £2,718,599.49 pounds today

Value of Pound in time (by year)

Period Value
1984 100
1985 104.58
1986 110.48
1987 114.63
1988 118.88
1989 124.97
1990 132.32
1991 144.49
1992 153.87
1993 158.68
1994 162.23
1995 166.03
1996 171.1
1997 175.92
1998 179.21
1999 182.51
2000 185.3
2001 187.58
2002 190.11
2003 193.41
2004 195.94
2005 199.24
2006 203.55
2007 209.38
2008 214.2
2009 220.79
2010 225.35
2011 232.45
2012 240.81
2013 246.64
2014 251.46
2015 253.23
2016 254.5
2017 259.06
2018 266.16
2019 271.48
Today 271.86