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Financial tools for understanding prices, value, and purchasing power.

BLS average price

How much did midgrade gasoline cost in September 1999?

Midgrade gasoline averaged $1.38 per gallon in September 1999.

$1.38

per gallon in September 1999

Adjusted with CPI-U, that is about $2.75 in 2026 dollars.

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Source: U.S. Bureau of Labor Statistics Average Price Data, APU000074715. Imported from BLS bulk time-series files (raw published monthly values).

Related historical prices

Midgrade gasoline prices in 1999
Historical midgrade gasoline prices
Midgrade gasoline prices in August 1999
Midgrade gasoline prices in October 1999
Gas inflation calculator

Data: U.S. Bureau of Labor Statistics — CPI-U. Series CUUR0000SA0, base period 1982–84 = 100. Coverage: 1913–2026. April CPI is used for 2026 until the annual average is published.

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