Inflation Calculator
Calculate how inflation affects the purchasing power of money over time.
Inflation Details
Historical average: ~2-3%
Inflation Impact
10 Years Ago
$100.00
=
Worth Today
$134.39
Purchasing Power Over Time
About This Calculator
The Inflation Calculator helps you understand how inflation affects purchasing power over time. Enter an amount from the past to see what it would be worth today, or enter today's amount to see what it was worth in the past.
Inflation erodes purchasing power, meaning the same amount of money buys less over time. This calculator shows you the real impact of inflation on your money and helps you understand the importance of investing to keep pace with inflation.
Formula & Calculation Method
Inflation Calculation Formula:
Future Value (Today's Worth) = Past Amount × (1 + Inflation Rate)^Years
Past Value (Then's Worth) = Today's Amount / (1 + Inflation Rate)^Years
Inflation Impact = Future Value - Original Amount
Example: $100 from 10 years ago at 3% inflation:
Today's Value = $100 × (1.03)^10 = $100 × 1.344 = $134.40
The same $100 would need to be $134.40 today to have the same purchasing power.
How to Use This Calculator
- Enter Amount: Input the dollar amount you want to calculate.
- Enter Years: Input how many years ago (or forward) you want to compare.
- Enter Inflation Rate: Input the average annual inflation rate percentage (historical average is 2-3%).
- View Results: See what the amount would be worth today (or in the past).
- Analyze: Review the chart showing purchasing power changes over time.
Frequently Asked Questions
What is a typical inflation rate?
Historically, the U.S. inflation rate averages around 2-3% annually. It can vary significantly year-to-year. The Federal Reserve targets 2% inflation. Higher inflation periods have seen rates of 5-10% or more.
How does inflation affect my savings?
Inflation erodes the purchasing power of cash savings. If your savings earn less interest than the inflation rate, you're losing purchasing power. This is why investing is important to keep pace with or exceed inflation.
Can I calculate forward inflation?
Yes! Enter today's amount and set years to a future value to see what that amount might be worth in the future with projected inflation.
Why is inflation important for financial planning?
Inflation means your money will buy less in the future. When planning for retirement or long-term goals, you need to account for inflation. A retirement goal of $1 million today will need much more in 30 years due to inflation.
Expert Reviewed
This calculator was reviewed by NumCalculators Editorial Team, Multi-disciplinary Expert Team