Inflation Calculator
Quick answer: Enter an amount and inflation rate to see purchasing power over time.
Calculate how inflation affects the purchasing power of money over time. Enter an amount, expected annual inflation rate, and number of years to see future purchasing power (what your money will be worth) or historical value (what past dollars equal in today's money).
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Last reviewed: April 2026Report an error
What $1,000.00 buys in 10 years
Future Purchasing Power
$729.80
$1,000.00 loses purchasing power to $729.80 in 10 years at 3.2% inflation. Change: -27.0%.
| Year | Value |
|---|---|
| 1 | $968.99 |
| 2 | $938.95 |
| 3 | $909.83 |
| 4 | $881.62 |
| 5 | $854.28 |
| 6 | $827.79 |
| 7 | $802.13 |
| 8 | $777.25 |
| 9 | $753.15 |
| 10 | $729.80 |
Purchasing Power Over Time
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How to Use This Inflation Calculator
- 1Enter the dollar amount.
- 2Enter the expected annual inflation rate (historical US average: ~3%).
- 3Enter the number of years.
- 4Select direction: future value (purchasing power erosion) or past-to-present.
- 5Read adjusted value and year-by-year breakdown.
Frequently Asked Questions
- The long-run average US CPI inflation rate is approximately 3% per year. The Fed targets 2%. Use historical CPI data for past calculations.
- At 3% inflation, $100 today has the purchasing power of ~$74 in 10 years and ~$55 in 20 years. The Rule of 72: 72/3 = 24 years to halve purchasing power.
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