Free Online Utility

Free Online Inflation Calculator

Measure the real-world impact of inflation on your money. Calculate future purchasing power and price adjustments based on historic or custom inflation rates.

Economic Model

$
Wealth Erosion Alert

Inflation is a hidden tax on savings. This tool helps you visualize the decay of uninvested capital.

Future Purchasing Power

$676

In 10Y

$1,000 today will buy what $676 buys now.

Future Cost
$1,480
Adjusted price factor
Total purchasing loss
$324
Impact percentage
32.4%
Value decay

Purchasing Power Decay

Time-value decay
Economic Insight

Inflation effectively reduces the value of cash. To maintain this amount's purchasing power, an investment with at least a 4% annual return is required.

CPI Calculation Model Verified
Apr 20, 2026

The Silent Wealth Eroder: Understanding Inflation and Your Purchasing Power

Inflation is the rate at which the general level of prices for goods and services is rising, and, consequently, the purchasing power of currency is falling. Central banks attempt to limit inflation, and avoid deflation, in order to keep the economy running smoothly.

How Inflation Affects You

When inflation occurs, each unit of currency buys fewer goods and services. This loss of purchasing power impacts your cost of living, which eventually leads to a deceleration in economic growth. The most common measure of inflation is the Consumer Price Index (CPI).

Calculating Future Value and Purchasing Power

To understand the impact of inflation, we look at two main perspectives:

  • Future Cost: How much will a product that costs $1,000 today cost in the future? (Amount * (1 + Rate)^Years)
  • Purchasing Power: How much will $1,000 today be worth in terms of today's goods in the future? (Amount / (1 + Rate)^Years)

Common Questions

Everything you need to know about this tool.

What is inflation?
Inflation is the steady increase in the prices of goods and services over time, which reduces the value of money.
How does the inflation calculator work?
It uses the compound interest formula to show how much your money will be worth in the future or how much prices will rise based on a set inflation rate.
What is a 'normal' inflation rate?
Many central banks, like the US Federal Reserve, aim for a long-term inflation target of around 2% per year.
What is purchasing power?
Purchasing power is the amount of goods or services that one unit of money can buy. Inflation decreases purchasing power.
How do I protect my savings from inflation?
Investing in assets that typically outpace inflation, such as stocks, real estate, or inflation-indexed bonds (like TIPS), can help preserve wealth.
What is hyperinflation?
Hyperinflation is extremely rapid or out-of-control inflation, usually defined as exceeding 50% per month.
Can inflation be negative?
Yes, when prices decrease over time, it is called deflation. While it sounds good for consumers, it can be harmful to the overall economy.
Why do central banks want inflation?
A small amount of inflation encourages spending rather than hoarding cash, which helps drive economic growth and job creation.
Is CPI the only way to measure inflation?
No, while CPI (Consumer Price Index) is common, other measures include WPI (Wholesale Price Index) and the PCE (Personal Consumption Expenditures) index.
How long does it take for prices to double?
You can use the 'Rule of 72'. Divide 72 by the inflation rate (e.g., at 3% inflation, prices double roughly every 24 years).