JPY Inflation Calculator - Japanese Yen (2016-2025)

¥100 in 2016

¥101.69 in 2021

The cumulative inflation rate in Japan between 2016 and 2021 was 1.69%, meaning that overall prices were 1.02 times higher than they were in 2016. In other words, the purchasing power of ¥100 in 2016 was equivalent to ¥101.69 in 2021. The average annual inflation rate over this period was 0.34%.

Inflation timeline in Japan (2016 - 2021)

The chart below shows how the value of ¥100 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 Japanese yen 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 2016 to 2021	1.69%
Avg. Annual inflation from 2016 to 2021	0.34%
CPI 2016	98.07
CPI 2021	99.73

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 2016 and 2021, use the corresponding CPI values:

Value₂₀₂₁

=Value₂₀₁₆ ×

CPI₂₀₂₁/CPI₂₀₁₆

=¥ 100 ×

99.73/98.07

≈¥101.69

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 5 years between 2016 and 2021 and the average inflation rate was 0.3358%. Therefore, we can resolve the formula like this:

Value₂₀₂₁

=PV × (1 + i)ⁿ

=¥100 × (1 + 0.003358)⁵