Inflation Calculator
See how the purchasing power of the US dollar has changed over time using official CPI data from the Bureau of Labor Statistics. Data available from 1913 to 2025.
Last updated: · Bureau of Labor Statistics, CPI-U Annual Average (Series CUUR0000SA0)
$100 in 2000 is equivalent to approximately $186.30 in 2025 — a cumulative inflation of 86.3% over 25 years (average 2.5% per year). This means a dollar in 2025 buys about 0.0% less than it did in 2000. Source: Bureau of Labor Statistics, CPI-U Annual Average (Series CUUR0000SA0).
Data range: 1913 – 2025
CPI-U Annual Average from Bureau of Labor Statistics (Series CUUR0000SA0). Base period: 1982–84 = 100.
CPI in 2000: 172.2 | CPI in 2025: 320.8
Note: 2025 CPI uses BLS preliminary annual average. Final value published ~Feb 2027.
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What This Means
$100 in 2000 had the same buying power as $186.30 in 2025. Prices increased by 86.3% over this period, averaging 2.5% per year.
How This Is Calculated
This calculator uses the standard CPI-based inflation adjustment formula:
Adjusted Value = Original Amount × (Target Year CPI / Start Year CPI)For example, to find the 2025 equivalent of $100 in 2000:
$100 × (320.8 / 172.2) = $186.30Data source
Consumer Price Index for All Urban Consumers (CPI-U), not seasonally adjusted, annual average.
- Series: CUUR0000SA0
- Source: Bureau of Labor Statistics
- Base period: 1982–84 = 100
- Coverage: 1913 to 2025 (annual averages)
The CPI measures the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services. It is the most widely used measure of inflation and is published by the BLS, an agency of the U.S. Department of Labor.
Frequently Asked Questions
- What is $100 from 2000 worth today?
- $100 in 2000 has the same purchasing power as approximately $186.30 in 2025. This means prices have increased by 86.3% over this 25-year period, at an average annual rate of 2.5%. Source: Bureau of Labor Statistics CPI-U (Series CUUR0000SA0).
- What is the average inflation rate in the United States?
- The long-run average annual inflation rate in the US is approximately 3.2% (measured from 1913 to 2025). However, this varies significantly by period: the 1970s saw rates above 7-10%, while the 2010s averaged about 1.7%. The post-pandemic period (2021-2023) saw a spike to 5-8% before moderating to around 2.5-3% in 2024-2025.
- What is the Consumer Price Index (CPI)?
- The CPI-U (Consumer Price Index for All Urban Consumers) measures the average change in prices paid by urban consumers for a basket of goods and services. It's published monthly by the Bureau of Labor Statistics and is the most widely used measure of inflation in the US. The current reference period is 1982-84 = 100, meaning a CPI of 320 indicates prices have roughly tripled since 1982-84.
- How accurate is this inflation calculator?
- This calculator uses official CPI-U annual average data published by the Bureau of Labor Statistics (Series CUUR0000SA0). The CPI data is historical fact, not an estimate. The calculation is exact: Adjusted Value = Original Amount × (Target Year CPI / Start Year CPI). The CPI itself measures overall price changes and may not reflect your individual experience — housing, healthcare, education, and food prices have risen faster than the overall index.