Inflation Calculator — Calculate Purchasing Power Over Time
See how inflation erodes the value of money over time and calculate equivalent purchasing power. All calculations happen locally — nothing leaves your browser.
How to Use the Inflation Calculator
- Enter the original amount — the dollar value you want to adjust for inflation.
- Set the start year — when the original amount was valued.
- Set the end year — the target year for comparison.
- Adjust inflation rate — use the default 3% or enter a custom average rate.
- Review results — see equivalent value, purchasing power loss, and year-by-year breakdown.
Why Use This Calculator
Inflation silently erodes the purchasing power of money. Understanding how inflation affects your savings, salary, and investments helps you make better financial decisions. Whether you're comparing historical prices, planning for retirement, or evaluating salary offers across different years, this calculator gives you instant clarity.
Frequently Asked Questions
The long-term average inflation rate in the United States is approximately 3% per year, based on CPI data from the Bureau of Labor Statistics. However, it varies significantly year to year — from deflation during recessions to over 8% during high-inflation periods like the early 1980s and 2022.
If your savings account earns less interest than the inflation rate, your money loses purchasing power over time. For example, $10,000 in a savings account earning 1% with 3% inflation loses about 2% of its purchasing power annually. Investing in assets that outpace inflation is key to preserving wealth.
Absolutely. Enter your salary in the amount field and compare the year you started with the current year. This shows whether your real wages have kept pace with inflation. If your salary increased by 20% over 10 years but cumulative inflation was 30%, your purchasing power actually decreased.
Use Cases
Salary Comparison
Compare job offers or evaluate real wage growth by adjusting salaries across different years for inflation.
Historical Price Research
Understand what historical prices mean in today's dollars — from gas prices to home values.
Retirement Planning
Project future costs and understand how inflation impacts your retirement savings goals.
Investment Analysis
Evaluate real returns on investments by accounting for the effects of inflation over time.