Purchasing Power Loss Calculator
Estimate inflation-related erosion.
Purchasing Power Loss Calculator: Scenario Inputs
Annual percentage rate or benchmark index change.
Inflation & Purchasing Power Analysis
Over 3 years at 3.5% inflation, a $75,000 salary requires $83,154 to retain equal purchasing power. Without matching raises, your real compensation experiences an effective reduction of $7,355 (-9.81%).
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How Purchasing Power Loss Calculator Works?
The Purchasing Power Loss Calculator works by dividing one by the price growth factor and subtracting the result from one.
Enter an amount
Type a salary, savings balance or fixed payment.
Enter inflation
Type a cumulative rate, an annual rate with a number of years, or two index values.
Compute the loss
The calculator divides the amount by the price factor to get its remaining real value.
Read the erosion
The output gives the dollar loss, the percentage loss and the remaining real value.
Purchasing Power Loss Calculator Formula
The Purchasing Power Loss formula subtracts the inverse of the price growth factor from one.
Loss % = [1 − 1 ÷ (1 + π)t] × 100
Loss $ = Amount − Amount ÷ (1 + π)t
Variables
- Amount
- Salary or sum held fixed
- π
- Annual inflation rate
- t
- Number of years
Worked example
A fixed $75,000 salary over 5 years of 4% inflation loses 17.81% of purchasing power, or $13,355 in start-year dollars.
Purchasing Power Loss Calculator Conversion Table
This table shows purchasing power loss on a fixed $75,000 for 3 inflation rates and 4 time spans.
| Years | Loss at 2% | Loss at 4% | Loss at 6% | Dollar loss at 4% |
|---|---|---|---|---|
| 1 | 1.96% | 3.85% | 5.66% | $2,885 |
| 5 | 9.43% | 17.81% | 25.27% | $13,355 |
| 10 | 17.97% | 32.44% | 44.16% | $24,333 |
| 20 | 32.70% | 54.36% | 68.82% | $40,771 |
What is Purchasing Power Loss Calculator?
The Purchasing Power Loss Calculator is a tool that measures how much buying capacity a fixed amount of money loses to inflation. The loss is the share of goods that the same dollars no longer buy.
Purchasing power loss is smaller than the inflation rate. Prices rising 10% cut purchasing power by 9.09%, not by 10%.
What are the uses of Purchasing Power Loss Calculator?
There are 4 main uses of the Purchasing Power Loss Calculator.
Quantify frozen pay
Put a dollar number on what a pay freeze costs in real terms.
Check cash savings
Measure how much cash held in a 0% account loses each year.
Review fixed incomes
Show retirees how fast a fixed pension or annuity loses value.
Correct common errors
Replace the inflation rate with the correct, smaller loss figure in reports.
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