Inflation Calculator

Calculate the impact of inflation on purchasing power over time. See how much past dollars are worth today.
$
%

$1,000.00 in 2000 equals

$1,995.20

in 2026 dollars

Cumulative Inflation

99.5%

$1 in 2000 Buys

$0.50

worth in 2026

Inflation Details

Original Amount (2000)$1,000.00
Equivalent Amount (2026)$1,995.20
Period26 years
Average Annual Rate2.69%
Cumulative Inflation99.5%
Purchasing Power Change-49.9%

Use the Inflation Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

This Inflation Calculator helps you understand the true value of money over time by adjusting for inflation. It allows you to input a past dollar amount and a starting year, then calculates its equivalent purchasing power in a future year, including 2026. Understanding inflation's erosion of purchasing power is crucial for financial planning, investment decisions, and even understanding historical economic trends.

Our calculator uses the Consumer Price Index (CPI) as its primary measure of inflation. The formula applied is: Future Value = Past Value * (CPI in Future Year / CPI in Past Year). We source historical CPI data from the U.S. Bureau of Labor Statistics (BLS) and use projected CPI figures for future years, with a current estimate of 3.0% annual inflation for 2026, leading to an estimated CPI of around 314.5 for December 2026 (based on December 2023 CPI of 306.7 and 3.0% annual growth).

Remember that CPI is an average and your personal inflation rate may differ based on your spending habits. This calculator provides an estimate; actual inflation rates can fluctuate due to unforeseen economic events. A common mistake is to ignore inflation when planning for long-term goals like retirement, leading to underestimation of future financial needs.

Example: What is $10,000 from 2000 worth in 2026?

  1. 1 Input $10,000 as the 'Past Dollar Amount' and select '2000' as the 'Start Year'. Choose '2026' as the 'End Year'.
  2. 2 The calculator fetches the CPI for 2000 (roughly 172.2) and uses the projected CPI for 2026 (approximately 314.5). It then calculates: $10,000 * (314.5 / 172.2) = $18,263.65.
  3. 3 In 2026, $10,000 from the year 2000 would have the purchasing power of approximately $18,263.65.
  4. 4 This means that to buy the same basket of goods and services in 2026 that $10,000 bought in 2000, you would need over $8,000 more due to inflation's impact over 26 years. This illustrates the significant erosion of purchasing power over time.

Source: SEC · Last updated: April 2026

Frequently Asked Questions

How does inflation affect my savings?
Inflation reduces the purchasing power of money over time. At 3% annual inflation, $100 today will buy only about $74 worth of goods in 10 years. Savings accounts earning less than the inflation rate lose real value.
What is the average US inflation rate historically?
The long-term average US inflation rate is about 3.2% per year since 1913. Recent years have seen elevated inflation (9.1% peak in 2022), though rates have moderated toward the Fed's 2% target.
How much was a dollar worth 20 years ago?
A dollar in 2006 had the purchasing power of roughly $1.55-$1.60 in 2026 dollars, meaning prices have increased about 55-60% over the past two decades due to cumulative inflation.

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