PLN Inflation Calculator - Polish Zloty (2020-2024)

zł100 in January 2020

zł133.51 in February 2023

The inflation rate in Poland between January 2020 and February 2023 was 33.51%, which translates into a total increase of zł33.51. This means that 100 zloty in January 2020 are equivalent to 133.51 zloty in February 2023. In other words, the purchasing power of zł100 in Jan 2020 equals zł133.51 in Feb 2023. The average annual inflation rate between these periods was 0.78%.

Inflation timeline in Poland (Jan 2020 - Feb 2023)

The following chart depicts the equivalence of zł100 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 (PLN) 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.

The following table contains relevant indicators:

Indicator	Value
Cumulative inflation from 2020-01 to 2023-02	33.51%
Avg. Monthly inflation from 2020-01 to 2023-02	0.78%
CPI 2020-01	108.1
CPI 2023-02	144.32

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 months, we can use the following formula:

Value_t =Value₀ ×

CPI_t/CPI₀

To obtain the values equivalent in buying power between January 2020 and February 2023, use the corresponding CPI values:

Value_{Feb 2023}

=Value_{Jan 2020} ×

CPI_{Feb 2023}/CPI_{Jan 2020}

=zł 100 ×

144.32/108.1

≈zł133.51

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 months)

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 zł100 worth today. There are 37 months between January 2020 and February 2023 and the average inflation rate was 0.7841%. Therefore, we can resolve the formula like this:

Value_{Feb 2023}

=PV × (1 + i)ⁿ

=zł100 × (1 + 0.007841)³⁷