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Value of 1977 British Pounds today

£100 in 1977
£571.09 in 2022

The inflation rate in the United Kingdom between 1977 and today has been 471.09%, which translates into a total increase of £471.09. This means that 100 pounds in 1977 are equivalent to 571.09 pounds in 2022. In other words, the purchasing power of £100 in 1977 equals £571.09 today. The average annual inflation rate between these periods has been 3.95%.

Inflation timeline in the United Kingdom (1977 - 2022)

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 1977-2021 432.73%
Cumulative inflation 1977-today 471.09%
Avg. Annual inflation 1977-2021 3.88%
CPI 1977 20.95
CPI 2021 111.6
CPI 2022-04 (latest official data) 119
CPI today 119.64

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 1977 and 2021, use the corresponding CPI values:

Value2021
=Value1977 ×
CPI2021/CPI1977
=£ 100 ×
111.6/20.95
£532.73

To obtain the equivalent value today (present value), plug in the CPI for today, which is estimated as 119.64:

Valuetoday
=Value1977 ×
CPItoday/CPI1977
=£ 100 ×
119.64/20.95
£571.09

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 44 years between 1977 and 2021 and the average inflation rate was 3.8751%. Therefore, we can resolve the formula like this:

Value2021
=PV × (1 + i)n
=£100 × (1 + 0.038751)44
£532.73

UK inflation - Conversion table

Initial Value Equivalent value
£1 pound in 1977 £5.33 pounds in 2021
£5 pounds in 1977 £26.64 pounds in 2021
£10 pounds in 1977 £53.27 pounds in 2021
£50 pounds in 1977 £266.36 pounds in 2021
£100 pounds in 1977 £532.73 pounds in 2021
£500 pounds in 1977 £2,663.65 pounds in 2021
£1,000 pounds in 1977 £5,327.3 pounds in 2021
£5,000 pounds in 1977 £26,636.5 pounds in 2021
£10,000 pounds in 1977 £53,273 pounds in 2021
£50,000 pounds in 1977 £266,364.98 pounds in 2021
£100,000 pounds in 1977 £532,729.95 pounds in 2021
£500,000 pounds in 1977 £2,663,649.77 pounds in 2021
£1,000,000 pounds in 1977 £5,327,299.55 pounds in 2021
Cumulative inflation From 1977 471.09%
Avg. annual inflation From 1977 3.95%
CPI 1977 20.95
CPI today 119.64

Value of Pound over time (by year)

Period Value
1977 100
1978 108.26
1979 122.79
1980 144.85
1981 162.06
1982 175.99
1983 184.11
1984 193.24
1985 204.97
1986 212
1987 220.79
1988 230.09
1989 243.45
1990 263.02
1991 282.6
1992 295.48
1993 303.12
1994 309.8
1995 317.92
1996 326.99
1997 334.15
1998 340.36
1999 346.56
2000 350.38
2001 356.11
2002 361.36
2003 366.13
2004 371.38
2005 379.02
2006 388.57
2007 397.64
2008 411.48
2009 419.6
2010 430.1
2011 446.81
2012 458.26
2013 468.76
2014 475.45
2015 477.36
2016 482.13
2017 494.54
2018 506
2019 514.59
2020 519.84
2021 532.73
2022-04 568.05
Today 571.09

All available years

Today's value of british pounds by year:

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 |

Other currencies: