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# £100 in 1973 → £1,217.37 in 2020

### U.K. Inflation Rate, £100 in 1973 to 2020

According to the Office for National Statistics composite price index, today's prices in 2020 are 1,117.37% higher than average prices since 1973. The British pound experienced an average inflation rate of 5.46% per year during this period, meaning the real value of a pound decreased.

In other words, £100 in 1973 is equivalent in purchasing power to about £1,217.37 in 2020, a difference of £1,117.37 over 47 years.

The 1973 inflation rate was 9.10%. The current inflation rate (2019 to 2020) is now 1.50%1. If this number holds, £100 today will be equivalent in buying power to £101.50 next year.

 Cumulative price change 1,117.37% Average inflation rate 5.46% Converted amount (£100 base) £1,217.37 Price difference (£100 base) £1,117.37 CPI in 1973 93.500 CPI in 2020 1,138.243 Inflation in 1973 9.10% Inflation in 2020 1.50%

GBP Inflation since 1750
Annual Rate, the Office for National Statistics CPI

### Buying power of £100 in 1973

This chart shows a calculation of buying power equivalence for £100 in 1973 (price index tracking began in 1750).

For example, if you started with £100, you would need to end with £1,217.37 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When £100 is equivalent to £1,217.37 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 1973 dollars, the chart below shows how £100 buys less over the past 47 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:

Year Pound Value Inflation Rate
1973 £100.00 9.10%
1974 £116.04 16.04%
1975 £144.17 24.24%
1976 £168.02 16.54%
1977 £194.65 15.85%
1978 £210.80 8.30%
1979 £239.04 13.39%
1980 £282.03 17.99%
1981 £315.51 11.87%
1982 £342.67 8.61%
1983 £358.40 4.59%
1984 £376.26 4.98%
1985 £399.14 6.08%
1986 £412.73 3.40%
1987 £429.95 4.17%
1988 £451.02 4.90%
1989 £486.10 7.78%
1990 £532.09 9.46%
1991 £563.32 5.87%
1992 £584.39 3.74%
1993 £593.69 1.59%
1994 £608.02 2.41%
1995 £629.09 3.47%
1996 £644.28 2.41%
1997 £664.49 3.14%
1998 £687.27 3.43%
1999 £697.86 1.54%
2000 £718.50 2.96%
2001 £731.23 1.77%
2002 £743.42 1.67%
2003 £764.92 2.89%
2004 £787.70 2.98%
2005 £809.95 2.82%
2006 £835.83 3.20%
2007 £871.66 4.29%
2008 £906.42 3.99%
2009 £901.60 -0.53%
2010 £943.21 4.61%
2011 £992.30 5.20%
2012 £1,024.17 3.21%
2013 £1,055.29 3.04%
2014 £1,080.21 2.36%
2015 £1,090.91 0.99%
2016 £1,109.84 1.74%
2017 £1,149.63 3.58%
2018 £1,178.17 2.48%
2019 £1,199.38 1.80%
2020 £1,217.37 1.50%*
* Compared to previous annual rate. Not final. See inflation summary for latest 12-month trailing value.
Click to show 41 more rows

### How to Calculate Inflation Rate for £100 since 1973

This inflation calculator uses the following inflation rate formula:

CPI in 2020CPI in 1973
×
1973 GBP value
=
2020 GBP value

Then plug in historical CPI values. The U.K. CPI was 93.5 in the year 1973 and 1138.2433607545 in 2020:

1138.243360754593.5
×
£100
=
£1,217.37

£100 in 1973 has the same "purchasing power" or "buying power" as £1,217.37 in 2020.

To get the total inflation rate for the 47 years between 1973 and 2020, we use the following formula:

CPI in 2020 - CPI in 1973CPI in 1973
×
100
=
Cumulative inflation rate (47 years)

Plugging in the values to this equation, we get:

1138.2433607545 - 93.593.5
×
100
=
1,117%

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

• President Richard Nixon announces the end of the Vietnam War.
• The longest war in American history finishes after William Rogers and Nguyen Duy Trinh of US and North Vietnam's army sign a cease-fire.
• The IRA attacks London for the first time following the arrests of 10 of its members.
• The Senate Watergate Committee begins its hearings.

### 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: “1973 pounds in 2020 | UK Inflation Calculator.” Official Inflation Data, Alioth Finance, 24 Jan. 2020, https://www.officialdata.org/uk/inflation/1973.