Inflation Value Calculator
Convert money between any two years using real historical CPI. See what a past amount is worth today, what today's money will need to become, and how much buying power you lose.
What money from past years is worth today (measured long-run global CPI averages CPI)
Searches like "what was $100,000 in 2011 worth today" need measured price data, not an assumed rate. This table uses official annual-average CPI through 2024: the amount you'd need today to match the purchasing power that money had in each year. The calculator above answers any custom year and amount.
| From year | $1,000 then | $10,000 then | $100,000 then | Avg. inflation/yr |
|---|---|---|---|---|
| 1990 | $2,400 | $24,001 | $240,007 | 2.6% |
| 1995 | $2,058 | $20,583 | $205,833 | 2.5% |
| 2000 | $1,822 | $18,217 | $182,166 | 2.5% |
| 2005 | $1,606 | $16,062 | $160,619 | 2.5% |
| 2010 | $1,439 | $14,386 | $143,857 | 2.6% |
| 2015 | $1,323 | $13,235 | $132,349 | 3.2% |
| 2020 | $1,212 | $12,120 | $121,204 | 4.9% |
Source: long-run global CPI averages annual-average all-items CPI, latest measured year 2024. Later dates use the assumed long-run rate. Full citations on the data sources page.
Default inflation rate: 3.0% per year, based on long-run global CPI averages data (2026). You can override it in each calculator’s advanced options. See data sources for full citations.
How We Work It Out
Money is converted between two years using compound inflation, never simple inflation:
Where n = number of years between the two points and i = the annual inflation rate. The CPI ratio is preferred because it reflects the inflation that actually occurred rather than a flat assumption.
Real-World Examples
Past → Today: $10,000 from 2010
Using measured US CPI, $10,000 in 2010 has the same purchasing power as about $14,400 today, prices rose roughly 1.44x over that period.
Today → Future: $100,000 at 6%
If inflation averages 6%, $100,000 today will need to grow to about $179,085 in 10 years just to buy the same things, and an un-raised income would feel like only $55,840.
Frequently Asked Questions (FAQ)
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