German inflation calculator to factor inflation into any calculation

Let's say you got married in the year 2002 and had assets worth 10,000 euros. How much are these assets worth in 2022? This calculator allows you to figure out the real price of your assets based on the official consumer price index (CPI) in Germany.

When calculating your accrued gains ("Zugewinn"), you have to consider how inflation has affected the value of your assets. The initials assets, brought into the marriage on the wedding day, change value over time according to the inflation rate. The price increase is defined by the CPI difference between the starting and the ending date of the relevant period. The annual averages used in the calculations on the site is based on the German CPI, surveyed and published since 1948 by the German Federal Office of Statistics. In this inflation calculator, the current publication of 2022/01/19 is taken into account.


Contents


Calculate inflation rate

The period to be considered is determined by entering the first and the last year, each related to the end of the year. The smallest period to be considered is one year. The amount spent for the last year is calculated from the difference of the consumer price index (CPI) in the first and last year. You can select whether the amounts are to be input or output in euros (€) or German marks (DM).

Enter current values and select [Calculate]:

Entries for the Inflation Calculator Germany
Year: Amount: CPI: Currency:
First:
Last:
More Results of Inflation Calculation
Price rise 1948 - 2021: %
Average inflation rate p.a. 1948 - 2021: %
Inflation rate of last year 2021: %

More Results of inflation calculation

The calculated price rise is defined as the percentage change in prices between the starting and ending date of the relevant period. The average inflation rate p.a. indicates the percentage by which the prices have risen on an average per year. Last year's inflation rate indicates by how many percent prices have increased from the beginning to the end of last year.

Notes on the inflation calculator

Consumer price index (CPI) for Germany

The consumer price index (CPI) is a key indicator of price development. The percentage change in the CPI is referred to as an inflation rate or price increase rate. A time period with a rising price index is called inflation, a falling price index deflation. The CPI for Germany — long series from 1948 - is published monthly as a table by the Federal Statistical Office. This table contains various price indices for the period 1948 to 1991, and since 1991, a unified CPI and an index of retail prices. The index refers in each case as a percentage value compared to a base year. For the years 1948 to 1990 the price index for the cost of living is shown with base year 1995 (index = 100) and from 1991 the consumer price index with base year 2015 (index = 100). In this inflation calculator 2022, to calculate the consumer price index (CPI), the price index for the standard of living from 1948 to 1961 is taken from the column "4-Personenhaushalt von Arbeitern und Angestellten" and from 1962 to 1990 from the column "Alle privaten Haushalte" and from 1991 from the column "Verbraucherpreisindex" for Germany. The Federal Statistical Office publishes both annual and monthly values for the various key figures. In this inflation calculator 2022 only the current average annual values for the consumer price index (JD indices) are taken into account. The last updated annual values therefore refer to the year 2021. If a year after is entered, the index using an calculated by interpolating the last 3 years.

Normalisation of the consumer price index (CPI) as the basis for calculation

In the published table of the Federal Statistical Office, the index for the years 1948 to 1990 is related to the base year 1995 (index = 100). In this inflation calculator 2022 all indices from this period are normalised to the currently valid reference year 2015 and displayed as the CPI:

CPI = Index1995 * Indexyear / 100.

For the year 1948, for example, the normalized consumer price index (CPI), rounded to one decimal place, is calculated as follows:

CPI = 75,1 * 28,5 / 100 = 21,4.

Calculation of the price rise from the consumer price index (CPI)

The amount related to the end of the last year (A2) is calculated from the product of the amount at the beginning of the first year (B1) and the ratio of the consumer price index at the end of the last year (CPI2) to the consumer price index at the beginning of the first year (CPI1):

A2 = A1 * CPI2 / CPI1.

For example, an amount of 1000 € in 2000 would have a value in 2021 of:

A2 = 1000 * 109,1 / 79,9 = 1365,46 €.

The percentage price increase P is calculated from the consumer price index of the last year (CPI2) and the consumer price index of the first year (CPI1) as follows:

P = (CPI2 / VPI1 - 1) * 100.

For example, a CPI of 79.9 € in 2000 and a CPI of 109.1 in 2021 results in a percentage price increase of:

P = (109,1 / 79,9 - 1) * 100 = 36,55 %.

Average inflation per year

The average inflation rate spent per year applied to the amount in the first year and in each case to the resulting price increases of all subsequent years results in the amount spent in the last year. The average inflation rate per year P is calculated from the geometric mean of all consumer price indices (CPI) in the period under consideration over n years with i = 1 ... n:

xi = CPIi+1 / CPIi
P = ((x1 * x2 * ... * xn) 1/n) - 1) * 100.

For the years 2017 to 2020, for example, n = 3 results in a percentage price increase P of:

x1 = CPI2018 / CPI2017 = 103,8 / 102,0 = 1,0176
x2 = CPI2019 / CPI2018 = 105,8 / 103,8 = 1,0145
x3 = CPI2020 / CPI2019 = 105,8 / 105,3 = 1,0047
m = x1 * x2 * x3 = 1,0372
P = (m1/n - 1) * 100 = 1,23 %

Historical price development in Germany:

The lowest inflation rate (price increase) per year over the entire period consideration started with 1948 was in the year 1950, with a negative price increase of -6.4 % relative to the previous year. This means that Germany experienced a deflation, which had already begun in 1949 (-1.1 %) and ended in 1950. The maximum inflation rate was in the following year 1951 with a price increase of 7.6 %. Germany had other years with deflation relative to the previous year in 1953 (-1.7%) and 1986 (-0.1%). High inflation rates of more than 6 % relative to the previous year occurred in Germany in 1973 (7.1 %), 1974 (6.9 %) and 1981 (6.3 %).