GBP Inflation Calculator - British Pound (1969-2025)

£70 in 1969

£954.15 in 2019

The cumulative inflation rate in the United Kingdom between 1969 and 2019 was 1,263.07%, meaning that overall prices were 13.6 times higher than they were in 1969. In other words, the purchasing power of £70 in 1969 was equivalent to £954.15 in 2019. The average annual inflation rate over this period was 5.36%.

Inflation timeline in the United Kingdom (1969 - 2019)

The chart below shows how the value of £70 changes over time when adjusted for inflation, based on Consumer Price Index (CPI) data. All values are equivalent in terms of purchasing power, indicating how much money would be needed each year to buy the same goods or services.

All calculations are performed in British pounds with six-decimal precision, though displayed values are rounded to two decimals for readability. Inflation figures are sourced from official government and international reports released monthly.

The following table contains relevant indicators:

Indicator	Value
Cumulative inflation from 1969 to 2019	1,263.07%
Avg. Annual inflation from 1969 to 2019	5.36%
CPI 1969	7.91
CPI 2019	107.8

How to calculate the time value of money with inflation data?

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:

Value_t =Value₀ ×

CPI_t/CPI₀

To obtain the values equivalent in buying power between 1969 and 2019, use the corresponding CPI values:

Value₂₀₁₉

=Value₁₉₆₉ ×

CPI₂₀₁₉/CPI₁₉₆₉

=£ 70 ×

107.8/7.91

≈£954.15

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 £70 worth today. There are 50 years between 1969 and 2019 and the average inflation rate was 5.3635%. Therefore, we can resolve the formula like this:

Value₂₀₁₉

=PV × (1 + i)ⁿ

=£70 × (1 + 0.053635)⁵⁰