US dollars · Monthly CPI · Indicative comparison
What would that money buy?
Convert a US dollar amount between two months using stored US consumer price index levels. This measures changes in average consumer prices, rather than your personal cost of living.
Available history: January 2020 to September 2026 (80 stored months). Latest reference month: September 2026. CPI is published after the month it measures; unpublished months are unavailable.
Partial history: 1 monthly observations are missing between the first and last available months. Missing months are never filled or estimated.
$1,000.00 in January 2020 had the same average buying power as
$1,297.81in September 2026
- Starting CPI index
- 259.127
- Ending CPI index
- 336.298
- Starting observation
- 2020-01-31
- Ending observation
- 2026-09-30
- Starting CPI retrieved
- 2026-10-14 UTC
- Ending CPI retrieved
- 2026-10-14 UTC
Calculated from stored observations. This is not a live quote or financial advice.
How this comparison works
Equivalent amount = entered amount × ending CPI index ÷ starting CPI index.
Uses the U.S. Bureau of Labor Statistics CPI-U: all items, US city average, seasonally adjusted, with the index base 1982–1984 = 100. Each selected month matches its stored calendar month-end observation; that date represents the whole reference month, rather than a price or publication date on that day.
Seasonally adjusted history can be revised. Results use the latest stored values, rather than the data vintage available at the time. They may differ from annual-average or non-seasonally-adjusted inflation calculators. Money is calculated with decimal arithmetic and displayed to two decimal places.
Missing months are unavailable, including months not yet published. Intermediate gaps do not prevent a comparison when both endpoints exist. This tool covers US consumer prices only.
Source: U.S. Bureau of Labor Statistics; calculation by Bullion API. BLS data is public domain. BLS does not endorse this analysis.