Enter the initial amount of money, annual inflation rate, and number of years into the calculator to determine the inflation reduction value. This calculator can also evaluate any of the variables given the others are known.

Inflation Reduction Formula

The following formula is used to calculate the inflation reduction value.

IRV = P / (1 + r)^n


  • IRV is the inflation reduction value ($) P is the initial amount of money ($) r is the annual inflation rate (decimal) n is the number of years

To calculate the inflation reduction value, add 1 to the annual inflation rate. Raise this result to the power of the number of years. Then, divide the initial amount of money by this result. The quotient is the inflation reduction value, which represents the purchasing power of the initial amount of money after the specified number of years.

What is an Inflation Reduction?

Inflation reduction refers to the measures taken by monetary authorities, such as central banks, to decrease the rate at which the general level of prices for goods and services is rising. High inflation rates can negatively impact an economy, leading to reduced purchasing power and economic instability. Therefore, through various monetary policies like increasing interest rates, reducing the money supply, or implementing fiscal policies, authorities aim to maintain inflation at a manageable level to ensure economic stability and growth.

How to Calculate Inflation Reduction?

The following steps outline how to calculate the Inflation Reduction Value (IRV).

  1. First, determine the initial amount of money (P) ($).
  2. Next, determine the annual inflation rate (r) (decimal).
  3. Next, determine the number of years (n).
  4. Next, gather the formula from above = IRV = P / (1 + r)^n.
  5. Finally, calculate the Inflation Reduction Value (IRV).
  6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

initial amount of money (P) ($) = 5000

annual inflation rate (r) (decimal) = 0.05

number of years (n) = 10