Inflation Calculator
See how inflation erodes your purchasing power over time and plan accordingly.
See how inflation erodes your purchasing power over time and plan accordingly.
Future Purchasing Power
$47,761
Purchasing Power Loss
$52,239
Loss Percentage
52.2%
Equivalent Cost in Future
$209,378
An inflation calculator shows how rising prices erode the purchasing power of your money over time. It calculates the future cost of goods and services based on an assumed inflation rate, and conversely, shows what today's money will be worth in the future. Understanding inflation is crucial for long-term financial planning — if your investments don't outpace inflation, you're effectively losing money.
Formula
Future Value = Present Value × (1 + inflation rate)^years
This formula calculates how much something that costs a certain amount today will cost in the future. Conversely, to find the future purchasing power of today's money: Future Purchasing Power = Present Value / (1 + inflation rate)^years.
A measure of the average change in prices paid by consumers for a basket of goods and services. The CPI is the most widely used indicator of inflation and is published monthly by the Bureau of Labor Statistics.
The quantity of goods and services that a unit of currency can buy. As inflation rises, purchasing power falls — $100 today buys less than $100 did 10 years ago.
Nominal values are expressed in current dollars without adjusting for inflation. Real values are adjusted for inflation to reflect actual purchasing power. Always think in real terms for long-term planning.
Extremely rapid inflation (typically >50% per month) that can destroy a currency's value. While rare in developed economies, it highlights why holding only cash long-term is risky — your money needs to grow faster than inflation.
What will $100,000 be worth in 20 years with 3% average annual inflation?
Result: In 20 years, $100,000 will only have the purchasing power of about $55,368 in today's dollars. That means prices will roughly double — something that costs $50 today will cost about $90 in 20 years. To maintain $100,000 in purchasing power, you'd need $180,611.
Fact-Checked — All content is reviewed for accuracy against authoritative sources including IRS.gov, Federal Reserve data, and established financial research.
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